No need for a new thread. @K.Yeon Still runs the mod, due to his work commitments there is often delays in his updating. BOTH OPT and OPT_Legacy are purely parts mods so the chance of them EVER causing crashes is almost nothing. If a new thread were to be made it would be for the Legacy pack ONLY and it would be made by me, and at this stage I have no intention of starting a new thread as there is simply no need. Rest assured that these 2 mods work perfectly fine in 1.3 as long as IFS, FS and RPM are up to date.