Operating system: Windows-10-10.0.17763-SP0 64 Bits
Graphics card: Intel(R) UHD Graphics 600 Intel 4.5.0 - Build 18.104.22.16862
Broken: version: 2.83 (sub 2), branch: master (modified), commit date: 2020-02-12 18:36, hash: rBdd9dfadaac9b
Short description of error
With the wide markers bar in the bottom of Sequencer area and the almost locked position of channel 1 it has become almost impossible to box select from below channel one. The only way to do it is to zoom far into the timeline. Seems to be a regression. Gif:
Exact steps for others to reproduce the error
Switch Show Markers on and add a strip to channel 1. Now try to box select it from below.