So first I should comment I've only seen this on ubuntu 18.04 and on Mac OS Mojave (haven't tested it on other unix systems). But there is a bug I'm experiencing there where if I right click a tab/folder the context menu will disappear so fast you can't even see it. The only work around I've found is to right click & hold -> move the cursor off of the context menu -> release -> click menu item. Sometimes if you don't move it off the context menu then you will be unable to click anything on the context menu via click release (this happens to me on trackpad but not external mouse).
This bug doesn't exist on windows however
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