Using the 1.1.3 beta. I seem to be getting the used volume bug again. Can't relocate my vessel because 50% suddenly turned into 900%. Consistently happening during simulation with KRASH. Also Bill seems to have become some kind of ghost. Not sure if that's related or not. Everything else is functioning perfectly fine.
A workaround is not to use the extensions, as you can still launch the vessels normally even when the hangar complains about 900%.