Need to restart FunctionFlip in Mojave 10.14.2 after waking up from sleep.

[cryptator]

FunctionFlip shows that it has started but doesn't work (after starting MacBook from sleep). I have to restart it (stop and start again) to make it work. Is this a known issue?

[AmiZya]

I have the same issue and it's annoying :(

I hope someone knows the solution to this bug.

[akda5id]

It doesn't happen on every wake. But does happen frequently enough to be very annoying. I am seeing a whole string of errors in console log when it does fail, starting with:
default 13:55:59.890686-0700 FunctionFlip HIDAnalytics Unregister Send event com.apple.hid.queueUsage error 13:55:59.915836-0700 kernel IOHIDLibUserClient:0x100000f0e FunctionFlip is not entitled for IOHIDLibUserClient keyboard access error 13:55:59.916832-0700 FunctionFlip IOConnectCallMethod(kIOHIDLibUserClientElementValuesType):e00002c2 error 13:55:59.917402-0700 FunctionFlip Error Domain=NSMachErrorDomain Code=-536870206 "(iokit/common) invalid argument" UserInfo={reportingLine=200, reportingMethod=-[DDHidDevice openWithOptions:], reportingFile=/Users/Kevin/Documents/Projects/Programming/FunctionFlip/src/DDHidLib/DDHidDevice.m, origin=(*mDeviceInterface)->open(mDeviceInterface, options)} error 13:55:59.920103-0700 FunctionFlip ( 0 CoreFoundation 0x00007fff2d557be7 __exceptionPreprocess + 250 1 libobjc.A.dylib 0x00007fff661965bf objc_exception_throw + 48 2 CoreFoundation 0x00007fff2d5803dc -[NSException raise] + 9 3 FunctionFlip 0x00000001007dda36 FunctionFlip + 27190 4 FunctionFlip 0x00000001007dabbb FunctionFlip + 15291 5 Foundation 0x00007fff2fbad6e2 __NSFireDelayedPerform + 415 6 CoreFoundation 0x00007fff2d4f6889 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20 7 CoreFoundation 0x00007fff2d4f63ef __CFRunLoopDoTimer + 859 8 CoreFoundation 0x00007fff2d4f5ed7 __CFRunLoopDoTimers + 322 9 CoreFoundation 0x00007fff2d4dac7a __CFRunLoopRun + 1871 10 CoreFoundation 0x00007fff2d4d9ece CFRunLoopRunSpecific + 462 11 HIToolbox 0x00007fff2c108abd RunCurrentEventLoopInMode + 292 12 HIToolbox 0x00007fff2c1087d5 ReceiveNextEventCommon + 584 13 HIToolbox 0x00007fff2c108579 _BlockUntilNextEventMatchingListInModeWithFilter + 64 14 AppKit 0x00007fff2a750829 _DPSNextEvent + 883 15 AppKit 0x00007fff2a74f070 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352 16 AppKit 0x00007fff2a740d7e -[NSApplication run] + 658 17 AppKit 0x00007fff2a712b86 NSApplicationMain + 777 18 FunctionFlip 0x00000001007d9000 FunctionFlip + 8192 19 ??? 0x0000000000000002 0x0 + 2 )

And then that repeats a few times. The process is still running as reported by top.