Chrome keeps closing multiple tabs?

[Electerrific 14]

I use the latest Chrome version and whenever I have multiple tabs open and try closing any to the right (not the one on the extreme end, but any inbetween) not just the one tab closes, but two/three?

 

I bought a new mouse but the issue persists, and checked that the mouse settings are ok (though double-clicking seems to be an issue sometimes?)

 

I've run my antivirus programs (malwarebytes and Ccleaner)- nothing found. Is this an undetected virus or a mouse issue (new battery!)? :huh:

[Ghozer 112]

Are you closing with the X on the tabs individually, or pressing the middle mouse (clicking the wheel in) on the tab to close it!?

[Electerrific 14]

Are you closing with the X on the tabs individually, or pressing the middle mouse (clicking the wheel in) on the tab to close it!?

No, clicking on the X - annoying having to close tabs from the very end on the right?

[swarfendor437 14]

is this relevant?: