I doubt Sandbox+ has anything to do with the bugs on the steam and gog releases unless if it's also installed in those alongside LLP (loose lua patch). Like I said, the bugs starting occuring after I install the current version of LLP and I didn't (still don't) have Sandbox+ installed. Just only Additional Cheats and that's it. I also had that other SB+ with the additional stuff for missions and etc but the bugs didn't occur then when I had it installed for the short time I used it. Mods that affect clothing, textures, etc don't work properly or even at all until we can get some tools that lets us mod to the extent that we could with the original game.
Until then, most of the existing mods are rendered buggy and/or unusable. Would be neat if we could use existing mods on the remaster but Spearsoft understandably had to make some changes for the game.