Activity Monitor - Abnormal Wide Processes Column and Horizontal Scrollbar

[RadDave]

Hello All! Just replaced my iMac and now all 3 of my Macs (2013 MBPro & 2015 MBAir) all on Catalina - having an issue on the Air w/ recovery from sleep mode (keeps signing out of my account - but a matter months old, unresolved) - today I decided to look at the Activity Monitor on the Air and noticed a WIDE separation between my 'Processes' and the %CPU etc columns, i.e. the processes column was excessively long w/ a scrollbar at the bottom (which I've never seen in this app) - tried to resize the column w/o success (pics below of my normal MBPro vs. the Air appearance).

Checked all of the menu settings between the 2 laptops and they were identical; again could not resize the wide column - 'forced quit' the Activity Monitor and reopened w/o a change; rebooted the Air which did not correct the issue. The app cannot be deleted and re-installed w/o doing the whole macOS - have never seen this behavior before after years of looking at the app on 4 different Macs. Any suggestions appreciated. Dave
.
Screen Shot 2019-11-20 at 5.07.50 PM.png
.
Screen Shot 2019-11-20 at 5.03.15 PM.png

[MacInWin]

To resize columns, move the cursor to the title bar that has "Process Name" and move to the right to the little vertical bar just right of the "^" symbol. The cursor should change to a double arrow side to side. Holding down on the mouse key, move the cursor and the column should resize. If you are on a trackpad, it's a click/hold/drag operation.

[ferrarr]

What Process, was in the list, that was making the column so wide?

[RadDave]

What Process, was in the list, that was making the column so wide?

Thanks Jake - last night I tried to re-size in the fashion you describe but did not seem to work despite seeing the usual 'double-arrow' symbol - this morning did the same and reduced the size to half and the resizing stopped - grabbed it again and brought back to normal (pic below).

@ Bob - I went down the entire processes list last night to look for a LONG entry but nothing was found - as stated the resizing method finally worked! Dave
.
Screen Shot 2019-11-21 at 10.46.52 AM.png