Summary - MKS flex-o-tubes don't show up in the parts list in the VAB. I think I have all required prerequisite modules. The part didn't show up. I checked the flexotube config file, it said I had to have tech advanced construction, and I do. The part shows as owned in the tech under the research tree. The docs for flexotube only said I needed KAS. I checked KSP.log, it said flexotube needed ConnectedLivingSpace. Downloaded, installed, restarted, no joy. Checked KSP.log again and it now said I needed DeadlyReentry for that part. Downloaded, installed, restarted, no joy. KSP.log doesn't report any further problems with flexotube but I still don't see it in the VAB. Am I missing something? Am I doing something wrong? This driving me nuts, I have a base on Minmus I'm trying to finish and the docking ports won't line up... Running: Steam KSP 1.2.2 000_AT_Utils 220.127.116.11 000_USITools 0.8.18 CommunityCategoryKit 1.2.2 CommunityResourcePack 0.6.6 CommunityTechTree 3.0.3 ConnectedLivingSpace 18.104.22.168 DeadlyReentry 7.5.0 Firespitter 7.5.1 GroundConstruction 22.214.171.124 KAS 0.6.2 KIS 1.4.3 MechJeb2 2-126.96.36.199 ModuleManager 2.7.5 USI MKS 0.50.18.0 USI Konstruction 0.1.12 USI Kontainers (no version but was bundled with MKS) Thanks for any help!