Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: Radeon RX 580 Series ATI Technologies Inc. 4.5.13571 Core Profile Context 19.9.2 26.20.13003.1007
Broken: version: 2.81 (sub 14), branch: master, commit date: 2019-10-07 20:16, hash: rBa856c5eccffb
Short description of error
When edit multiples meshes at same time, sometimes in the UV editor the actions only affect at part of the tool.
Exact steps for others to reproduce the error
Open file, enter edit mode without to change selected objects and try to move in the UV view the mesh.