Remember the open folders in the side menu (also a little bug here)

What could be better?

It has happen to me multiple times, that the folders in the side menu have "auto closed".
I can not exactly say under which circumstances it happens, but if I navigate to here & there, I suddenly recognize that my open folders are closed. That was clearly not done by me!

The screenshot shows even a little bug:
Not only that again all folders are closed -- the screenshot gives the impression as if the Space " Anytwo Assembly" is at the moment the active one (because it appears open in the side menu).
-- But that's very wrong, because, as you see in the screenshot, my Collection "YT-Mucke" is shown in the main part of the screen. And this Collection belongs to my Space "Code-Jack's test Space". That means, THIS is the active Space at the moment.

What I request:

AnyTwo should remember which Folders and which sections in the side menu are open (and not change that on its own).
No mater how much you navigate, even no matter if you close and reopen the App -- I expect to see the side menu always in the same state as I have organized it.
(I hope it's clear what I mean, I've problems to formulate it in English.)