Every edited mesh with Outfit Studio is mangled ingame, any pointers?

[DFSL]

This started to happen after installing the latest BodySlide. Basically every mesh edited with Otfit Studio will stretch ingame. Before this everything was working Ok, for years. I can still use the BodySlide tool without problems, just can't dare to touch them with the Studio. Any pointers on what could be happening? Everything else, skeleton, HDT, is the latest version and not giving any problems. Reinstalling the tool or downgrading won't fix the issue. I don't know where to look.

[DFSL]

Found the solution at the Nexus forums. Basically the nif was doing a bad transition between 0 and 100% weight. Thanks for to all knowledgeable people who took the time to respond.

[allsunday]

Found the solution at the Nexus forums. Basically the nif was doing a bad transition between 0 and 100% weight. Thanks for to all knowledgeable people who took the time to respond.

Sometimes I get this issue once in a blue moon. I'm glad u were able to solve it but could you tell us how?

[DFSL]

You have to edit both the 0% and the 100% nifs to your liking,  in order to form a matching pair. Leaving one of the nifs unedited could cause this problem because the game can't handle characters with different weights if the files don't match. Of course, you can simply assign the _0 and _1 suffix to the same nif or use a plugin (?) to disable the weight system.