ALT (view object) behavior issue

[kxx355]

I use a default keyboard layout. MacOS 10.11.5. MacBookPro Retina
Sometimes, when I want to view objects, for example, a card, I press Alt and hold it, while I read text. Then I release a button. Some times when I release a key the object removed from the table. I need to use Undo two or three times to return my card to the table. And simultaneously with removing a card - view change to default view (sometimes). If I hold Alt and drug a pointer above cards - cards don't remove. And maybe this issue happens with face side of cards only. This issue happens with other objects too.
I don't know what is it and why Alt has that behavior. :(
This issue was on all version of TTS from one years ago to now time.

[Knil]

Try reseting your keybindings in the configuration menu.

[kxx355]

I try it many times. And reinstall Steam and TTS many times. Nothing.

[kxx355]

I do not know anyone with this problem

[Knil]

Is your alt key for some reason activating delete or backspace? I'd try /resetallsaved in the game tab this will erase on saved player prefs.

[kxx355]

I don't know - but in the Finder Alt don't delete any files.

[kxx355]

https://youtu.be/UYWFe5gofTg
I started Zombicide and press Alt - you can see what happens (((

[kxx355]

I saw a messages in game chat 'load camera position from slot 2" when I press Alt How it possible? )))
I reset to default shortcuts a few times.
When i try to use right Alt - I saw a message "Slot 3"

[kxx355]

I try to use XBOX gamepad - there is no issue with zoom object.

[kxx355]

Aтв I'll try to remap Alt as Ctrl or Cmd and use it for zoom objects.

[kxx355]

There is some strange behavior Alt button only. May be I have hide Alt extra function in Mac OS? Change Alt to Cmd key and everything OK.