Host allow not working?

Hi
I have two hosts which shall use collabora: cc (moodle) and nextcloud.
Nextcloud can always edit documents, moodle never, regardless of what i try to insert into /etc/coolwsd/coolwsd.xml (debian 11, collabora 22.05)

<host allow="true" desc="Moodle">cc.mydomain.de</host>
<host allow="false" desc="Nextcloud">nextcloud.mydomain.de</host>

I tried also coolconfig set storage.wopi.host cc.bbs1emden.de
I deleted the nextcloud entry. No changes.
I see no errors in the apache log, but the access-log writes for Nextcloud:

185.203.49.26 - - [26/Sep/2022:12:08:07 +0200] "POST /browser/2674677/cool.html?WOPISrc=https%3A%2F%2Fnextcloud.mydomain.de%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F34_ocplz42zwrnl&title=Welcome%20to%20Nextcloud%20Hub.docx&lang=de&closebutton=1&revisionhistory=1 HTTP/1.1" 200 10311 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

But for Moodle:

185.203.49.26 - - [26/Sep/2022:12:09:03 +0200] "GET /loleaflet/a937747/loleaflet.html?WOPISrc=https%3A%2F%2Fcc.bbs1emden.de%2Fmod%2Fcollabora%2Fcallback.php%2Fwopi%2Ffiles%2F192594_0_0&access_token=4f8b2f8c014b&lang=de-du&closebutton=1 HTTP/1.1" 400 577 "https://cc.bbs1emden.de/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36"

I notice the “POST /browser/…” for nextcloud, but “GET /loleflet/” for moodle.

what am i missing?