@fredo6 I'm not sure who's update has resolved this but Vray 7 with the latest hotfix now works alongside the latest LibFredo and Thrupaint 2.8. For some reason Thrupaint had disappeared from my PC when I started it up today after the Xmas break, so installed the latest version today. I don't use LOTT, so I can't give any feedback on that. Thanks for your work

@Rich-O-Brien Thanks for the suggestion, but that's my other issue. V-Ray 7 isn't launching if LOTT is installed. At least, not in SU2024.

Tool is in beta so expect irregular behaviour. If find nest translations into groups reduces unwanted movements but I still get it from time to time.

Hi, Please send to https://flextools.cc/contact/ all the log files you find that are located here: C:\Users%USERNAME%\AppData\Local\F3d_FlexTools\logs Try disabling all other extensions and see if the crashes still happen. Are the skp files located in a network drive or in a cloud folder? Does this happen with specific files only? If yes, please send us the files.

Been busy and just saw your reply. Thanks for the help pcmoor!

Your main issue here is that you have the wheels changing direction by "mirroring" the cluster/row (of 3 wheels) across it's origin by using a negative length and sliding it over (offsetting). While clever, the wheels' positions aren't fixed, so they seem like they're getting it when they really don't know where to be. There may be a way to effectively use negative length for a component (I avoid it), but I'd suggest keeping it simple while you better your grasp the nuances of DCs. Simplest solution: Add your position to each wheel (or set 1 with 2 copies) and add RotZ=parent!divert_direction. For the wheel group, add a Divert_Direction attribute (=parent!Divert_Direction) so you now have a pass-through attribute from the model to the wheels. You'll probably also have to modify your position X if/then statement to account for the removed negative length formula