Yeah could be anything, Daz is a bitch of a bit of software, I hate using it but it's the best for what you need for VNs so we persist lmao.
My favourite thing at the moment is the bug where you get black lines on the eyes skin textures and have to change the instancing settings. Problem is, some of my files are 80/90mb and take five minutes to load. 40 files are effected, I'm gonna have to spend 3 and a half hours alone looking at Daz's load screen, to change one setting on a menu, then spend another 4 and a half hours re-rendering. All for the love of the game.
Yet there's nothing that can produce the visuals that Daz can, while also having the functionality, assets and community that it does. Pros and cons