Garmin venu 4 not recorded all my swim data today since the latest update? Any thoughts?

Wednesday swim I can see pace, strokes, swolf heart rate in all sections, lengths and rest etc

All I have today is a heart rate, my pace is off by a minute higher than usual and a calorie burn of 2.5K!

All that's changed is the software update.

Really disappointed in this watch, had a Venu 3 and only upgraded as that didn't record swim records!