Montana stops working very often

After upgrading to version 15.00 I went for a ride last Saterday. Used a prepared GPX route, controlled, modified, re-calculated in BaseCamp with the City Navigator NT 2023.1 map. Made sure less then 50 waypoints are in it. After less then 30 minutes my Garmin fully stopped working. Black screen. No errors. It did mention a few minutes before that I had deviated from the route and whether I wanted to calculated the route again. To which I reply no, because I knew I would get to the calculated route again soon. Restarted the Garmin and it took up the route again. This happened 4 more times! The battery is not the issue: the Garmin indicates it is externally powered. Newest firmware and maps installed.

In the Debug directory there is a log file in which all 5 instances are recorded. This is what I see (amongst other information). Sometimes Task Name is MPM Main, sometimes CDP Main.
3459 (Montana 7xx) SW ver: 1500
Build Type: PRODUCTION
Commit:dc31c50c79b4088a2fdfe5f397a7333ee398b6c3
ESN: 3400309335
11/26/22 09:17:03
RTL
Task Name: CDP main
ESht PC: 0x20362421
ESht SP: 0x22cff228
errnum: 0x024
Message: C04AA8FC,00000000,C0725BCA,00004C50,C072A81A,00001314,00000000,00020000,C0725B26,00000000,C0725B20,00000006,C0725B29,22165488,00000001,2042B106,8000003F
Anyone know what to do about this? Report it somewhere? This way my Montana is of no use to me.