[SOLVED - Bug in recent/current OS versions] OS giving Fatal Exception when using delete 3-connection vertex tool on this mesh.

[SmedleyDButler]

I have a mesh I had to cut a part out of which left a hole. I'm using OS to try and fill the hole, as per Ousnius' guide for using OS to repair holes in meshes. Unfortunately I get a fatal exception every time I get to step 4 (deleting the redundant verts).

 

 

I then tried going back a step and using the earlier version of the mesh where the holes had not yet been cut and go from there. I could delete the raised vertices to make the area a flat panel and then just fixing the UV and retexturing that area to match the shoulderpads, instead. But I got the same error again when trying to delete the raised vertices! (I was not trying to delete any edge vertices)

 

 

Can anyone have a look and tell me what the issue might be? As far as I can tell, I don't have any unapplied transforms or anything like that.

 

Is the fact that it's a hole the issue? The guide shows an edge piece being filled in, but I'm trying to fill a hole (accepting that there would be a small seam where the edges meet, no big deal).

 

I know the lines which divide the belt from the shoulderpads are still considered edges, so when I went with the second option I was deliberately not deleting those (OS wouldn't allow me to anyway).

 

Alternately, if someone has the means to just link the vertices in the first mesh to fill the holes could they do that for me? The texture is already continuous for the shoulderpads in the diffuse map, so just linking the vertices to fill the holes should produce a seamless area.

 

Mesh (can install as a mod, I included the texture files with correct path): https://drive.google.com/file/d/1G-YBee7Xak21C4KeQNX_fMpL0t5BAKE3/view?usp=sharing

 

Thanks.

 

 

[SmedleyDButler]

I've had a few other people try to replicate this issue and everyone had the same problem.

 

However, one person also checked older versions of OS to see if it was a bug which had been introduced, and found that OS v5.3.1 or earlier did not have any problems with editing the mesh. Still can't fathom why this is happening other than an introduced bug, but I'm able to work on and repair the mesh without any problems at all by using OS v5.3.1

 

Just in case anyone else runs into the issue.