Comment 2 for bug 1570240

It appears to be some sort of issue with granting the permissions... These applications stopped working since upgrade to OTA-10.1, but after a reboot/restart, all three asked for access to the camera (which they did not do previously), then they seem to work fine.

uTorch and Tagger previously had access to the camera, but apparently I needed to grant this again since the upgrade to OTA-10.1.

Hope this information helps with the fault-finding...