Are there midi clock issues with 8.5?

I seem to be having trouble getting some hardware synths to sync with the midi clock on 8.5.I had an issue on 8,where if i wasnt in the midi editor screen,the midi would not be sent out to the hardware in time with the track.Just wondering if there are known issues with the midi clock or if its something on my end.I have midi clock destinations selected in the transport settings and have the synths set up to receive clock.I have done this b4 many many times so not sure whats up.Am i missing something obvious here?Cheers