Here is an update.
I tried clearing the cache, thanks @danhead for the tip
It didn’t fix the issue but allowed me to observe more carefully what happens during the sync.
Basically, clearing the cache of ProtonMail Bridge removes all email data and disconnects my account. So on MailSpring’s side it’s kind of like a sync reset of some sorts I guess. Anyway here’s what happens:
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When MailSpring first scans the folders, the Inbox is “coherent” (all the messages that should be there are there).
During “scanning/browsing” of the other folders (“balayage” in French, when the green circle is slowly blinking next to all the folders), it’s fine.
The issue happens at the same time than this scanning is over. All email disappear progressively from the Inbox in a few seconds after the end of the scanning.
Hope this helps
Another element of interest: whenever I start the app, the Inbox is coherent. The inbox empties itself after a time (a few minutes usually). I haven’t seen any event that seems to trigger the emptying.
I don’t know when exactly this’ll be something that Ben can look at. There are a lot of things to do! However, because Mailsync is now open source, anyone else tech-savvy is encouraged to take a look. (Yes, I know the Mailsync build system doesn’t work outside of Ubuntu 16.04 right now…that’s what I’m working on.)
If there is anything I can do to progress this issue to its resolution, let me know. I can follow troubleshooting steps, send log files, etc. For me, it does appear the emails are being archived in Mailspring, but are still in the inbox in ProtonMail itself. They disappear (Hooray! You’re done), then re-appear, disappear, etc.
I would also appreciate if this issue could be fixed. It’s honestly the only thing preventing me from purchasing the pro version of the software and using it as my main email client.
It’s really frustrating, because Mailspring, while re-syncing all the mails, uses A LOT of web traffic.
My Mailbox is about 2GB, and the Mailspring/ProtonBridge has over 35GB of Download Traffic in the last few days…
@maximgx Yes in my case it also keeps reappearing after a while. But I can see that protonmail bridge is generating a huge network traffic. I think it keeps downloading the mailbox again and again.
I have the same issue with protonmail, disabling the cache on proton bridge didn’t help. I have to keep hitting F5 to see my email and the most annoying part is when you are trying to write a reply and it keeps disappearing.
Is this really not solved by now since 2017?