I verified the bug but only on 60.8. Only gmail (my only oauth) won't bring in new messages when "on all accounts" is selected. I did have to disable IDLE (immediate notification) on gmail to see the problem.
Bug 1593611 Comment 5 Edit History
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I verified the bug but only on 60.8. Only gmail (my only oauth) won't bring in new messages when "on all accounts" is selected. I did have to disable IDLE (immediate notification) on gmail to see the problem. Edit: Don't remember how I tested this but immediate notification really has no effect. See edit for comment 7.