I use a lot of filters in Gmail, which apply various labels and sub-labels to incoming messages. Normally when I log into Gmail, the labels and sub-labels are exactly as I left them the last time I was logged in, meaning that if Label 2 is a sub-label of Label 1 and Label 1 was expanded so that I could look at messages in Label 2, then Label 1 is still expanded and Label 2 is still immediately visible the next time I log in.

I like this.

What I don't like is that, for the last month or so, my labels have been collapsing on their own, about once per week, so that only the top-level labels are visible. In other words, every once and a while the expansion of the labels is reset. For me, this behaviour is abnormal.

Why is this happening? Should I be concerned? Are there any recent changes in Gmail that explain this? Has anyone else had this behaviour?

It might only be happening for my mobile browser view, but I can't be certain until the next time that it happens.

  • I should add, I don't see anything suspicious in my gmail log-in history. – Sabina Oct 11 '15 at 2:35
  • I really doubt there's anything nefarious going on here. It's probably just Google neglecting to remember the last state of the label. I, personally, wouldn't count on sub-labels staying expanded if I want to see them all the time. I'd move such labels to the top level. – ale Oct 11 '15 at 13:34
  • It doesn't appear to be related to browser cookies. I expanded labels in one browser and then opened my mailbox in a different browser and they were open. I guess I'll leave them open and see what happens tomorrow. – ale Oct 11 '15 at 13:39

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