+1 to what the OP said, I also noticed this a few months ago, nothing has been resolved in the meantime. Really hope it will be
UPDATE: this is the error in the extension log
ERR: Channel: Message 'tabClipper.checkBackgroundStatus' failed with error:
Error: Tab must be specified
Error: Tab must be specified
at Extension._tabClipper (chrome-extension://pioclpoplcdbaefihamjohnefbikjilc/commons.js:52:67037)
at tabClipper (chrome-extension://pioclpoplcdbaefihamjohnefbikjilc/commons.js:52:70919)
at Channel._handleDispatchRequest (chrome-extension://pioclpoplcdbaefihamjohnefbikjilc/commons.js:32:88258)
at Channel._handleMessage (chrome-extension://pioclpoplcdbaefihamjohnefbikjilc/commons.js:32:86795)
at _listener (chrome-extension://pioclpoplcdbaefihamjohnefbikjilc/commons.js:32:86660)