Hi @support @TCMBC @thedarktangent

Hi @support @TCMBC @thedarktangent

I noticed a communication issue between defcon.social and the Lemmy feddit.it instance I personally manage (Lemmy rel. 0.19.4). I encountered the same problem with lemmy.ml (Lemmy rel. 0.19.5), but the problem isn't there with lemmy.world (Lemmy rel. 0.19.5).

(If you don't know, Lemmy is a Reddit clone that works in the fediverse thanks to special accounts (communities are "group" activitypub users) that *reshare* messages addressed to them.)

I know for sure that I haven't blocked defcon.social from my feddit.it instance, and I see that you haven't blocked feddit.it.

Any ideas? Can you see any error messages coming back from the first two messages I posted?

Here are the three messages I posted:

1. to feddit.it https://defcon.social/@informapirata/116136419770109821
2. to lemmy.ml https://defcon.social/@informapirata/116136419957658666
3. to lemmy.world https://defcon.social/@informapirata/116136479563511775

PS: I also mention my account @macfranc because I monitor it frequently and because, unlike my account @informapirata@mastodon.uno, it allows me to write long messages.

@informapirata @support @TCMBC @macfranc @informapirata@mastodon.uno thank you for the report. Have you looked at your sidekiq logs to see if there are any errors?

@thedarktangent

Have you looked at your sidekiq logs to see if there are any errors?

Thanks for the feedback; Lemmy doesn't have sidekiq, but I'll try to see what the logs say anyway.

@informapirata@defcon.social @support @TCMBC @informapirata@mastodon.uno

@thedarktangent This is interesting.
Every time a defcon.social user tries to interact with feddit.it, this error appears:

2026-02-26T09:23:02.075679Z WARN lemmy_server::root_span_builder: CouldntFindObject: Failed to parse object https://defcon.social/@signorina37/116135473370481795 with content {"error":"Request not signed"}: data did not match any variant of untagged enum SearchableKinds

by @signorina37

or

2026-02-26T07:16:22.978630Z WARN lemmy_server::root_span_builder: Unknown: Failed to parse object https://defcon.social/users/grabbi_it/statuses/116133671937824462 with content {"error":"Request not signed"}: data did not match any variant of untagged enum PageOrNote

by @grabbi_it

We are currently receiving errors from the following instances, but they don't have much in common: they are running different versions or even forks.

https://bsd.network
https://cathode.church
https://defcon.social
https://kolektiva.social
https://mastodon.art
https://social.lol
https://universeodon.com
https://wehavecookies.social

@informapirata@defcon.social @support @TCMBC @informapirata@mastodon.uno

@thedarktangent The problem may be related to the #authorized_fetch parameter being enabled.

Here is the GitHub discussion:

Question: Mastodon AUTHORIZED_FETCH not working? · Issue #4451 · LemmyNet/lemmy

Question Hello, can it be that Lemmy cannot talk to Mastodon instances if the instance AUTHORIZED_FETCH is activated? lemmy_1 | at src/root_span_builder.rs:16 lemmy_1 | 2024-02-13T17:32:37.659047Z WARN lemmy_server::root_span_builder: Un...

GitHub (github.com)

Here is the parameter specification in the Mastodon documentation:

Configuring your environment - Mastodon documentation

Setting environment variables for your Mastodon installation.

(docs.joinmastodon.org)

@signorina37 @grabbi_it @informapirata@defcon.social @support @TCMBC @informapirata@mastodon.uno