Add to the list, returning to plan view from a 3D view and having both the active floor and the Trace & Reference floor selectable at the same time. Switching windows sometimes fixes it and sometimes a restart of program is required. Seems that this started a few months ago, is sporadic, and erratic. I have noticed that the rubber band issue and others seem to occur most frequently, if I leave an Archicad file open for a while with no activity and come back to it.
Ted Taylor
Atlanta, GA , USA
iMac (Retina 5K, 27", Late 2015)
3.3 GHz Intel Core i5 32GB
AMD Radeon R9 M395 2GB
OS10.14.2,
Latest Archicad 22