Jedi_9610 Thanks for your work and testing. It's much appreciated. I think it's best if you post a new thread in Abh's section with your solution so other can use it.
It has something to do with thruster initialization so I figure it out fairly quickly it was a game bug. Anyhow, Walt said he has finally fixed it but that's in the next coming 0.15.8 RC4 or full version. His fix for RC3 didn't apply to this bug.
In case you are interested to know. Aside from the bugs I listed in the first post here are all the other game bugs I believe are still around https://forum.cosmoteer.net/d/10333-0-15-5-rc1-incomplete-quick-and-dirty-check-list