Description of the Bug: When going to Item Inventory, i am unable to switch or perform any actions due to the buttons (Place Item/Open Capsule, Sellback,...) being unresponsive

Steps to reproduce:
1. Go to "Item Inventory" via "Items" or "Item Inventory"
2. See that the default "Place Item/Open Capsule" is not highlighted
3. Press any other button
4. No response

To note here:
1. I did open 20 Capsules just before i noticed this issue
2. It only affects "Item Inventory" actions, i can still sort by "Placed", "Recieved", etc.


What should have happened?
1. "Place Item/Open Capsule" should be highlighted by default and the Items shown should have the correct Action Layout (Dropdown Boxes showing area and XY coordinats).
2. I should be able to switch between actions by pressing the remaining buttons.

What did happen?
As seen in screenshot, no action is highlighted, i cant perform any actions and i cant switch between them, my menu is stuck in a sorta "viewing" mode.


My System:
Windows 7 Home Edition
Firefox 84.0 (64-Bit) (up-to-date version)

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Update/Additional Info:

It does work on mobile for me, but not on pc.

Update 2:
Okay, i cleared my cache (not the cookies/logins) and it did the trick seemingly!

Issue solved on my end!

Update 3: (March/June)
Same issue again, but couldnt be solved by clearing cache (even with cookies/logins)

This time, mobile is affected as well so it seems to be an issue with the website

Update 4:
Solved on my end without doing anything, but others complained as well.