3 hours ago, ritterss said:

According to your advice, i deleted the Player & Headtracking comments mod entirely, loaded the save before opening the door to the church, prior to talking to Debora. The Player & Headtracking comments's effect is thus disabled, as my character doesn't turn head towards Debora while she speaks. However, the issue persists. When we are teleported to the Stein's hideout, the 3d person camera switches between Ivy, Stein and my character, but after few lines it goes into 1st person view and is stuck on Stein. Then the scene plays as before: after the cutscene there's fade-to-black and nothing happens. Please advise.

Sounds like the scripts for it are still active in your save. also fully deleting mods outright during a playthrough will introduce other issues.

You can try the ForceEnablePlayerControls command in the console.

Applied this console command in the Stein's hideout. Gained the control back, able to move, but the issue persists. The screen goes FTB and nothing happens😶

4 hours ago, ritterss said:

Applied this console command in the Stein's hideout. Gained the control back, able to move, but the issue persists. The screen goes FTB and nothing happens😶

When the quest is done, a video is supposed to play. If it doesn't it could mean the codecs aren't there on your system. Remove the video file from the directory, that way it gets skipped. 

Fallout 4\Data\Video\ivy_credits_bik.bik

You can double click the file to see if it actually runs on your system too. If it doesn't and you want the proper codecs, download Bink & Smacker here: https://www.radgametools.com/bnkdown.htm

Just keeping you updated. All worked eventually. The thing was that there were NO video file with credits in the game directory. Apparently, the game was trying to play back the file which wasn't exist in the system. I just unzipped all DATA folder from the mod into the game as required and all went perfectly. After the credits we appeared in the Stein's hideout, safe and sound. Thanks for the clue redarding the videofile.

So, for the record, for the future generations of players who might encounter the same issue:

Have Player & Headtracking comments mod turned off or removed prior to entering the church, you may enable it after the quest is complete;
Have ForceEnablePlayerControls console command handy, just in case if you are stuck during the last conversation;
Thoroughly check the mod's integrity, make sure all files are present
 

6 hours ago, ritterss said:

Just keeping you updated. All worked eventually. The thing was that there were NO video file with credits in the game directory. Apparently, the game was trying to play back the file which wasn't exist in the system. I just unzipped all DATA folder from the mod into the game as required and all went perfectly. After the credits we appeared in the Stein's hideout, safe and sound. Thanks for the clue redarding the videofile.

So, for the record, for the future generations of players who might encounter the same issue:

Have Player & Headtracking comments mod turned off or removed prior to entering the church, you may enable it after the quest is complete;
Have ForceEnablePlayerControls console command handy, just in case if you are stuck during the last conversation;
Thoroughly check the mod's integrity, make sure all files are present
 

You'll want to NOT unpack the sound files. There are .wav files in the build with predefined loops, that won't work if they are not in the BA2 file. If this needs to be done, unpack just the video file.

But this is all a workaround for the fact that a BA2 file did not run on your system. The best solution is just install the right codec.

I am having an issue with Ivy Goes to Nukaworld > Find and confront Dr. Stein.
I found the door inside the Robco Battlezone and when I approach it, I'm captured.
I sit there and listen until Ivy says "Stay away from my baby" then her teleporter partially lights up the area then I receive a load screen.
In front of me is Aborrition.  There is a child's giggle then Aborrition takes off running.
About 2 seconds later, without touching the keyboard or mouse, there is another load screen and I'm standing in front of Ivy and Dr. Stein and the quest "Sinister End" begins.
Stein asks "What did you do?"  Then Ivy states that I "fucked everything up."
I continue through the dialogue, but ultimately, Ivy says Stein and I will never see her again and she teleports away then closing credits roll.
I reloaded and the same thing occurred.
I located the video walkthrough and saw the Stein's Construct quest is supposed to start when Aborrition appears, but it doesn't, just another load screen then Sinister End.
I left the Robco Battlezone, reentered, but Stein's Construct never started... just straight to Sinister End.
I left again, spent some time running around Nukaworld then tried again, but I keep getting sent directly to Sinister End.

I have always ensured my flashlight was off either prior to being captured or turned it on and off once Ivy told me to turn it off. 
I am over 670 hours into this playthrough (27d, 22h, 35m).  I have had Ivy with me for about 669 of those hours.  I can't fathom continuing without her.  She's been saying she loves me since somewhere between 70 and 100 hours into the playthrough (if not earlier), so I don't feel I have made her mad enough to skip the construct quest (if that is even possible).
Am I doing something wrong or is there a console command I can run to force Stein's Construct to begin and not be auto-teleported to Sinister End?
Any help is greatly appreciated.  I gotta keep my Ivy!!

12 hours ago, ThePsychoKiller said:

I am having an issue with Ivy Goes to Nukaworld > Find and confront Dr. Stein.
I found the door inside the Robco Battlezone and when I approach it, I'm captured.
I sit there and listen until Ivy says "Stay away from my baby" then her teleporter partially lights up the area then I receive a load screen.
In front of me is Aborrition.  There is a child's giggle then Aborrition takes off running.
About 2 seconds later, without touching the keyboard or mouse, there is another load screen and I'm standing in front of Ivy and Dr. Stein and the quest "Sinister End" begins.
Stein asks "What did you do?"  Then Ivy states that I "fucked everything up."
I continue through the dialogue, but ultimately, Ivy says Stein and I will never see her again and she teleports away then closing credits roll.
I reloaded and the same thing occurred.
I located the video walkthrough and saw the Stein's Construct quest is supposed to start when Aborrition appears, but it doesn't, just another load screen then Sinister End.
I left the Robco Battlezone, reentered, but Stein's Construct never started... just straight to Sinister End.
I left again, spent some time running around Nukaworld then tried again, but I keep getting sent directly to Sinister End.

I have always ensured my flashlight was off either prior to being captured or turned it on and off once Ivy told me to turn it off. 
I am over 670 hours into this playthrough (27d, 22h, 35m).  I have had Ivy with me for about 669 of those hours.  I can't fathom continuing without her.  She's been saying she loves me since somewhere between 70 and 100 hours into the playthrough (if not earlier), so I don't feel I have made her mad enough to skip the construct quest (if that is even possible).
Am I doing something wrong or is there a console command I can run to force Stein's Construct to begin and not be auto-teleported to Sinister End?
Any help is greatly appreciated.  I gotta keep my Ivy!!

I asked around about this issue on the Discord but no one could easily find an answer. To help you further, hop on there and go to #mod_and_techsupport. The people there are much smarter than I at fixing these kind of issues.

41 minutes ago, Reginald_001 said:

I asked around about this issue on the Discord but no one could easily find an answer. To help you further, hop on there and go to #mod_and_techsupport. The people there are much smarter than I at fixing these kind of issues.

Thank you for the response.

Is the Discord server the one access through this link https://discord.gg/X7XpdmaQYE or is there another one?  I didn't see a #mod_and_techsupport channel on that one.

3 hours ago, Reginald_001 said:

I asked around about this issue on the Discord but no one could easily find an answer. To help you further, hop on there and go to #mod_and_techsupport. The people there are much smarter than I at fixing these kind of issues.

I just tried something different...  Once teleported to the Aborrition, I brought up the console then just sat there for about 3 minutes.

I then closed the console and Stein's Construct began.
The only thing I can figure is that the script doesn't kick off soon enough when initially teleported, so the Sinister End script starts up.

I have almost 2400 mods installed with over 2116 plugins running.

Hopefully, I can continue with the quest.
If I run into issues, can you share the discord invite link?

Thank you again for your response and support!

52 minutes ago, ThePsychoKiller said:

I just tried something different...  Once teleported to the Aborrition, I brought up the console then just sat there for about 3 minutes.

I then closed the console and Stein's Construct began.
The only thing I can figure is that the script doesn't kick off soon enough when initially teleported, so the Sinister End script starts up.

I have almost 2400 mods installed with over 2116 plugins running.

Hopefully, I can continue with the quest.
If I run into issues, can you share the discord invite link?

Thank you again for your response and support!

https://discord.com/invite/official-companion-ivy

That was amazing.  Thank you for Ivy!!

just wanted to say thank you again for the great mod!..

and wonder, if a collab with Nuke Ride is possible, just a "banter dialogue" with the Sis / Clone companion from there (a bit like Serena and Sofia for Skyrim...),

Ivy and the Sis / Clone would make great fun dialogues banter (Ivy teasing the clone, while the clone being so naive and bliss, falls for it.. , but Ivy might get jealous of the Clones honesty and naivety,... and both get horny at times and want 3somes, other times only one wants it, etc.)

there is just so much potential between these two companions... and Fallout 4 could use an iconic pair like Sofia and Serena banters