Could you check if the device insertion/removal are properly detected using "udisksctl monitor"?
You should see for example:
10:03:01.370: Added /org/freedesktop/UDisks2/block_devices/sdb1
[...]
10:03:17.618: Removed /org/freedesktop/UDisks2/block_devices/sdb1
Could you check if the device insertion/removal are properly detected using "udisksctl monitor"?
You should see for example:
10:03:01.370: Added /org/freedeskto p/UDisks2/ block_devices/ sdb1
[...]
10:03:17.618: Removed /org/freedeskto p/UDisks2/ block_devices/ sdb1