Advanced tab flashes in Studio 2019 or a part of it is missing

Question

Hello, 
 In Studio 2019, when the cursor is in a segment with "no matches found", a part of the Advanced tab disappears or is missing at all: 
 
 So, for example, I cannot use the Insert symbol feature in an empty segment. 
 In segments with some content, the full tab is displayed: 
 
 Sandor

Paul · Answer

Unknown said: And it lets SDL know how to reproducibly Hide/Reveal the Insert Symbol ribbon 
 Normally I haven't come across this problem... but I tried again this morning with an sdlxliff file created using a file definition I don't have and low and behold I have the same issue! That's good news! 
 Unfortunately your workaround does do anything for me so I can't validate that. I could solve it with a "reset window layout" however. 
 But even better news is that when I closed the project, activated another, then went back... the features were missing again. So hopefully this will be reproducible for a developer too!

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Advanced tab flashes in Studio 2019 or a part of it is missing