So when I go to
https://eldritch.cafe/@melunaka/100271792979269654
and that I click the button to «Show more for all» I have a black screen (the div#mastodon is empty)
The error happens on two instances on 2.4.1rc4/2.4.2, but not on another where I can’t see the same messages so that may be related to some private messages.
I get this error in the debugger, but I don’t know how to go from here. Help?
@melunaka I got the same on octodon.social but it was only happening on very specific toots and I couldn't find a specific pattern 
@Eramdam It seems I can’t see the first toots of the thread on my instance, so that may be related.
e.g. I can see publicly https://catboy.cafe/@bram/100271016511645076 on the static website but not in the logged-in interface…
@Eramdam Apparently I can go to other «parts» of thread which are weirdly not connected to each other, by searching for them manually on a user profile, and I have the same problem with them.