This is a very important information to reproduce the issue:
I would like to add that we are having same value for altitude and HAE if we set average to 1 as you are showing in the video below. The problem is setting average to more than 1 and having the same values.
In the software you downloaded we fixed a "precision related issue that might caused overflow when working with WGS84 LAT/LON coordinates with cm precision" in a project. Now we were able to reproduce it with the NMEA logfile you sent using the Mean >=2 on the GNSS Surveying panel. We'll investigate the issue and you will get a solution ASAP (probably by tomorrow).
Thanks for your patience.