There was an issue that affected a couple of Mastodon instances hosted on Masto.host where federation stopped working.
I am going to install a patch to try and avoid it happening again. It will require a restart but there shouldn't be more than 20 seconds of downtime.
I believe the issue is the similar to https://github.com/tootsuite/mastodon/issues/9362 but caused by the code introduced on v3.5.2 related to the new audio upload.
Patch is installed. It all looks good from my end but if you have any issues please let me know.
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