System Information
Operating system: Linux-5.0.0-25-generic-x86_64-with-Ubuntu-19.04-disco 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.34
Blender Version
Broken: version: 2.81 (sub 3), branch: master (modified), commit date: 2019-08-23 13:55, hash: rB18f4182e983f
Worked: (optional)
Short description of error
When I want to open an image or change the filepath of an already open image by clicking on the Open Image button, the blender filebrowser opens, but somehow still gets the mouse click input from the editor before, so that when I move the mouse, the image, that was underneath the mouse position when I clicked the Open Image button, is being dragged across the screen by the File Selector Drop operator, which then prevents me from opening any image.
Exact steps for others to reproduce the error
For this to work you need to browse a rather large texture folder. I am using the Big Bug Bunny envs/textures folder in this example, but obviously I am not going to upload that. Any folder with many images will do, it just has to be in thumbnail view.
This happens almost always in the shading workspace, as there the image editor is arranged in a way so that the Change Filepath button of the Image Panel is in a position, where there is a high chance that an image will be under it, when the File Browser opens.
Maybe this is a keymap issue, where Release is triggering the action instead of Click?