Bluetooth mouse - Left click not working: single click like double click

[Anion]

Hi everyone!

I noticed since today that the left click of my logitech bluetooth mouse (t630) does not work anymore. E.g. when I click and hold it acts if I would press the left button VERY often. If I click just once, it acts in the same manner: like I'd click very fast and often.

Interestingly, if I switch the secondary and primary click (so the left click becomes the secondary click) with one another, the problem for the simple click function persists but is moved the right click (then new primary click). This means I can neither click anything with the bluetooth mouse nor drag and drop (hold).

The problem is linked to my user account - the admin account is not affected.

I think it started after I connected another logitech USB mouse a couple of days ago.

Here are my trouble shooting steps so far (dont wonder, I performed some before realizing the problem is bound to my user account)

1. try to option-shift-click the bluetooth and debug (reset) - no effect
   
2. I resetted my SMC and PRC - no effect
3. I deleted my bluetooth.plist under /Librarby/Preferences - no effect
4. I booted a linux live CD to check - BT-mouse working as usual
   
5. I updated the logitech options manager - no effect
6. I deleted the logitech options manager - no effect
7. I connecte a regular USB mouse - works as usual

Thus I know, that the problem is

1. bound to my user account
2. bound to bluetooth

But I have no idea what to do next. Any hints?

Thanks!!