Epix 2 changes screen during activity

Hi,

Recently I activated Garmin marathon training.

During the activity it adds the training screen as the last one. This screen is very useful and I very much like it.

Unfortunately, after some random time (10 second, 2-4 minutes) it switches back to the first one.

It's extremely annoying as I constantly have to play with buttons to see how much time left to the end of interval etc..

Anyone experienced it, any advise how to solve it?

Best regards,

Paweł