welding & scripting forge

i dont know about u but i will be making large structures and yet not cheating the 64 peace limit and yet sometimes my groups just blow up. now that my builds are getting more elaborate i have been having issues with scripted welded structures kinda un-welding… the parts just keep falling further behind the moving parts. also what is going on where only the spawn points that are 343 placed are usable? and why did they get rid of… infection, wooden pallets, and pre-bult structures IE three room building. and why did custom game recordings stop working?