Bluetooth devices not working properly
Hi, since updating to High Sierra, upon starting the iMac my magic keyboard only types when pressing enter, and whenever I click with the magic mouse, it's a right click, no matter the button I click. This only temporarily resolves when restarting, but after a while, hours, days sometimes, my mouse again suddenly only makes right clicks and I have to forcefully shut everything down for it to work again. This issue exists for some weeks now, but until recently rarely enough not to bother me. I tried everything, PRAM and SMC reset, deleting unnecessary bluetooth devices, disabling handoff between iMac & iCloud devices, to no avail.
I appreciate your help.
iMac (27-inch, Late 2013), macOS High Sierra (10.13.2)