Can't drag to select multiple objects

Hi

I'm working on an indesign file for few days, and everything worked fine, until suddenly I was't able to select multiple objects by dragging the selection tool (the black cursor).

Moreover, when I wish to select text inside a textbox, it does select it, but doesn't marks the selection.

This happens only in that specific file. All files are working just fine. I tried to duplicate it, nothing.

Tried to clear any prefencers, updated to the latest version, but nothing will help.

Can anyone advise?

Thanks