Operating system: Linux-5.3.0-42-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GT 630/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 390.116
Broken: version: 2.83 (sub 9), branch: master, commit date: 2020-03-18 10:23, hash: rBc3651adf8914
Worked: 2.82a release
Short description of error
Tracking footage via plane track usually provides you with a rectangle, which corners you then have to align with those of the billboard in the footage individually, one by one. But this functionality is gone. One can only select, move or scale the whole thing, not the corners. LMB moves the rectangle, RMB opens the context menu.
Exact steps for others to reproduce the error