System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 432.00
Blender Version
Broken: version: 2.83 (sub 15), branch: master, commit date: 2020-05-02 11:33, hash: rB1623fdb3bc55
Worked: (newest version of Blender that worked as expected)
Short description of error
After modeling bone-animation and switching to dopesheet, the markers don't show up.
Exact steps for others to reproduce the error
Added rotation-markers with the 'I'-key and tested it.
Switched to dopesheet to edit the markers: none visible, so nothing editable.

