Swim activity quirks vs. Fenix 3

Second is with the Mobile app. I swam for 25 min today and although when I look at the activity under "Swimming" it is registered as 1.2km 25 min... under the "My Day" activities it is registered as an 15 min Move IQ event.

A few quirks that I have noticed after a swimming activity that I did not have on the Fenix 3...
First is that the barometer goes mad... storm warning and need to reset barometer afterwards... I can understand why swimming messes up the pressure sensor, but the Fenix 3 did not do this during a swim activity. I guess it was coded to ignore weird changes in pressure when a swim activity was running.

Second is with the Mobile app. I swam for 25 min today and although when I look at the activity under "Swimming" it is registered as 1.2km 25 min... under the "My Day" activities it is registered as an 15 min Move IQ event.

This second quirk has only happened twice in 6 swims... but the first is EVERY time.
I hope that since the Fenix 3 did not have this, that it is a quirk that can be fixed.

Since update to 3.3 (perhaps coincidentally), now no Intensity Minutes for my last swim. Despite using a tri HRM that accurately logged my heart rate.

Any other swimmers out there that are seeing these bugs?

I can confirm that my swim yesterday was not considered in Intensity Minutes.

Moreover do you have problem with your watch after swimming? My fenix doesn't measure the heart rate anymore. Moreover from time to time the fenix freezes or switches off.