Mailspring stuck in perpetual syncing

I’m using Mailspring on both Windws and Linux; for the past 48 hours, it seems that nothing is syncing, or if it does - it happens at an extremely slow pace.

About 1–2 emails get sent per hour from the sending queue; labels and archives are not happening.

It’s just stuck in perpetual syncing. This happens on both of my computers (again, both Linux and Windows) and is happening mostly with one of my multiple email addresses for no apparent reason.

I tried to reconnect the account, clear cache, sync again, nothing is working.

I checked the log, and I’m seeing a lot of:
[background] [warning] Ignoring changes to REDACTED

Any ideas?

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