Can't subscribe to a local community

Hey,

On my local lemmy I noticed that after trying out Tailscale I borked my federation connectivity (at least I think that was it).

I've rolled back changes, but noticed that most of my federation updates aren't flowing, and I can't even subscribe to a local community.

However, I can subscribe to a remote one, but only one of quite a few I was previously connected to.

No errors in the logs, and everything seems to be working otherwise.

Any ideas of where to search?

Activity updates from logs:

lemmy_1     | 2023-09-11T22:07:35.820559Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 41, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820579Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 42, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820602Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 43, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820622Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 44, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820653Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 45, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820674Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 46, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820696Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 47, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820717Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 48, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:07:35.820738Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 49, running: 0, retries: 0, dead: 0, complete: 0
lemmy_1     | 2023-09-11T22:09:26.317267Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 1, running: 0, retries: 14, dead: 0, complete: 35
lemmy_1     | 2023-09-11T22:09:27.658199Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 1, running: 0, retries: 14, dead: 0, complete: 36
lemmy_1     | 2023-09-11T22:09:29.009600Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 1, running: 0, retries: 14, dead: 0, complete: 37
lemmy_1     | 2023-09-11T22:09:29.899976Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 1, running: 0, retries: 14, dead: 0, complete: 38
lemmy_1     | 2023-09-11T22:10:00.253091Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 1, running: 0, retries: 14, dead: 0, complete: 39
lemmy_1     | 2023-09-11T22:10:02.139038Z  INFO send:send_lemmy_activity: activitypub_federation::activity_queue: Activity queue stats: pending: 1, running: 0, retries: 14, dead: 0, complete: 40

That pending: 1 never clears. Not sure how to identify it.

This was posted through federation, from my local instance - so, obviously bits and pieces are working just fine.