There occur some error messages when construction by design in shipyard is almost finished:
SERVER: Error occured on Server! Please send in server error report. RuntimeException.
Construction interrupted! Design no longer docked!
Error: Cannot unload design! No Design Loaded!
After that, the construction disappears and the design unloads.
The ship I want to construct was made before power 2.0 update, but already with stabilizier blocks. I've tried to find the cause of the problem. Manipulating a block next to a stabilizer group (e.g. placing an adjacent block and then removing it again) seem to resolve it (doesn't matter if doing so before or after docking on shipyard). Don't know, why. I've uploaded the blueprint of the ship as I am clueless. {F27535}