Zerobrane Studio Version: 1.90 OS: Ubuntu 20.04.2 LTS x86_64 CPU: Intel i5-4590 (4) @ 3.700GHz GPU: NVIDIA GeForce GTX 1050 Ti Memory: 2565MiB / 7852MiB
Video: https://app.box.com/s/dui1kxuat8saodg8hr9ws9qz91ewgop8
As title suggests. I never had this issue while working on windows. Sometimes right-clicking works, albeit very rarely. It seems the project tree is not able to properly capture my cursor.
Yes, it's a known issue that has been fixed in the master branch (see the discussion in ticket #1062), so you may want to use that or apply the fix from the ticket.