Sharing does not work - "not accessed by owner"

[fallingcats]

The link generated by pressing share in gpxpod does not seem to point to any track for me, instead it triggers this error:

https://github.com/julien-nc/gpxpod/blob/b84541901c7f3b7cfda994061e3f2b2c53d911f5/lib/Controller/PageController.php#L457 It does not matter if I'm logged in or not, I always get this message, even after already having viewed the track directly (without share link).

zipped gpx file Potentially relevant: I'm storing the gpx file in a subdir of a local share.

Nextcloud Hub 5 (27.0.2), gpxpod v5.0.12