Uploads kaputt nach Update auf v20. (Bad Request,

Hallo liebe Community,

seit dem Update meiner NextcloudPi-Instanz auf Version 20 funktionieren die Uploads von Daten nicht mehr. Im Log finde ich folgende Fehler:

Sabre\DAV\Exception\BadRequest: Expected filesize of 2140209 bytes but read (from Nextcloud client) and wrote (to Nextcloud storage) 8192 bytes. Could either be a network problem on the sending side or a problem writing to the storage on the server side.

Details beim aufklappen:

/var/www/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php - line 155:

OCA\DAV\Connector\Sabre\File->put(null)

/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 1104:

OCA\DAV\Connector\Sabre\Directory->createFile("Melissa_Mar ... d", null)

/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php - line 527:

Sabre\DAV\Server->createFile("files/Danie ... d", null, null)

/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php - line 89:

Sabre\DAV\CorePlugin->httpPut(Sabre\HTTP\Request {}, Sabre\HTTP\Response {})

/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 474:

Sabre\DAV\Server->emit("method:PUT", [ Sabre\HTTP ... }])

/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 251:

Sabre\DAV\Server->invokeMethod(Sabre\HTTP\Request {}, Sabre\HTTP\Response {})

/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 319:

Sabre\DAV\Server->start()

/var/www/nextcloud/apps/dav/lib/Server.php - line 332:

Sabre\DAV\Server->exec()

/var/www/nextcloud/apps/dav/appinfo/v2/remote.php - line 35:

OCA\DAV\Server->exec()

/var/www/nextcloud/remote.php - line 167:

require_once("/var/www/ne ... p")

In der Android App bekomme ich auschließlich “Bad Request” angezeigt. Im Browser-Frontend Fehler dieser Art

Expected filesize of 133255 bytes but read (from Nextcloud client) and wrote (to Nextcloud storage) 8192 bytes. Could either be a network problem on the sending side or a problem writing to the storage on the server side.

Ich habe schon viel gegoogled, aber vielleicht ist mein Verständnis der Materie nicht gut genug–gefunden habe ich nichts was mir hilft. Hat jemand von euch vielleicht einen Tipp?

Viele Grüße! Daniel