u/Legitimate-Rush-23

As the title says, I have weird thing where my top handle, when I fit it, gives an error message saying "This accessory is not supported by the device and cannot be used. Please verify the compatibility with the device.” I can't see any damage (I am incredibly careful with it, have always used the covers etc when removing) and I've cleaned it with alcohol. It will work and takes a lot of removing and refitting but it means I basically have to leave the handle on at all times for fear of it not working next time.

Anyone else had this and how did you fix it permanently? Camera is out of warranty and everything else works perfectly, just this little error? Thanks!