Seems like I missed your reply, sorry. Sadly I cannot provide prosody logs anymore as I migrated to ejabberd (needed for two auth sources at same time).
ejabberd debug logs with this “bug” (i use pastebin this time, shitty “link limit” in codeblock):
https://bin.disroot.org/?29cfbd86b400d92a#GTIVujkgVvZWpAvUTyiHs0NSU5XlQJYAHpG6l92E5JA=
https://bin.disroot.org/?37b6fa6683f10352#4HyLI8Gvlh+HVkep3aTymjgdOMB73t4edlveCyr2Ulk=