Flashlight bug affects Jolla C and J1 on 2.43, 2.45 and 2.48.
Install workes and i did not had to wait for minutes on first activation. Flashlight fired up in ~5 seconds on first try. toggeling after that takes 1-2 seconds.
Pausing all media playback during lit flashlight is the main attraction of this bug though and also present but not related to your port