Since the most recent update (137) I have been having an issue where when I switch tabs to an existing open tab, occasionally that tab will be moved to the end (far-right) of the list of tabs. I find this extremely annoying as I often am using tabs to organize what is related to what, and this is undoing my organization.

I can't quite see what the exact trigger is - it's not every time, but it fairly often. It sometimes happens when I try to 'switch to' my current tab, and sometimes it will happen when I'm switching to a different tab.