On Tuesday, February 12, 2019 at 11:22:19 AM UTC-5, wrote:
Here is an example:
https://www.onlinecontest.org/olc-3....l?dsId=6604692
- at the time 18:11:04 the altitude displayed in the web page is 68 meters (which is well underground), while the IGC file (downloaded from OLC) says "A0086400944" at that time, i.e., about 900 meters.

....and here I was thinking "I don't know what he's on about... all *my* flights display correctly". lol. New issue. Have you been in touch with OLC?

T8