Ok thank you.

Ok the Bug seems similar but for me it also crashes when there are no Trees where the Pole would be. Should I add to the other Report?

I wanted to build a new Line of big Poles. I was holding down the LMB and then deconstructed the placed Pole without letting go of the LMB and when it should build the new Pole it crashed. I also tested it without flying and it also crashed. The linked Folder contains the Log-File, Memory-Dump, Save...