I've got 307 mods installed in Skyrim SE, so I'm not sure what you did to mess up your 128 mod install, but it was definitely something on your end. it obviously was on my end and I know that, I had way too many overwrite prompts and also too many conflicts where I'd have to set up the order of which mod should go after which and that really confused me to bits. Did not have to do that in NMM or MO2. I'd say if I gave Vortex a proper chance and would really go deep to learn it's tricks, I'd probably end up really happy at the end of the day. Installed MO2 started putting mods in right and left like crazy, brake the game, wen't back unchecked the mods bits by bits until found the one causing trouble and uninstalled it, really easy to tick/untick mods to see which is causing issues. Just feels super smooth and really have like 0 learning curve, most of the stuff is super common sense a bit like NMM was when I first started modding skyrim. Like I said it's only my personal experience and how I see things, everyone is wired differently and what one might see as common sense other might need to delve into it and try to actually figure it out. For me Vortex will need figuring it out, MO did not, what do you think? So you made 307 to be less or equal to 255 limit? You see that is higher level of attention to detail and care while installing mods, not many people have it. I managed to do it once only and that was with NMM, if I'd have to do this with Vortex I'd literally cry myself to sleep every night :D