Images not loading since v5.0.12

[laurensbl]

Since 5.0.12 images aren't loading/displayed anymore. When I select a folder containing images the load animation plays indefinitely and the log states a lot of entries like this one:

[PHP] Error: exif_read_data(): Unable to open file at /srv/www-local/nextcloud/apps/gpxpod/lib/Service/ProcessService.php#940

This occurs in both new and old interface. Tracks are loaded/displayed correctly in both interfaces.