Command key flash lag/bug

So, now with the command keys being able to be cue list flashes for strobe, etc I'm finding that they aren't nearly as reliable as the flash buttons under the faders. For instance, I need to flash all LEDs in a rhythm to the kick drum and it seems that once every four beats the list kind of lags. The cue will stay on for a split second or won't activate, its kinda mixed. My assert/release/fade is all at 0s and I've been doing this reliably with the faders for years now. Wondering if this is a logged issue? I'd love to depend on these buttons more in the future.