Yes that was the issue. Thank you!

Did you use a card or cable direct from camera?

I had the same thing happen on my X100F. The fix for me was just pressing the shutter button a bit harder. After you half-press to lock focus, make sure to press down firmly and it should fire right away. If I press too lightly, mine still lags sometimes. Seems like it might just be the way the shutter button is designed, or maybe some wear over time.

Hey , same problem here - did you find the cause or what the issue was? Was it the SD / CFast card?  Thanks 

See the response on the other forum - you likely had the camera set to save jpg only