Hi there,
as it seems there is a solution for this problem and that is a new software for the "instrument cluster". Taken from https://forum.skodahome.cz/topic/126687-palubn%C3%AD-pc-se-nuluje-s%C3%A1m/page/3/#comments
(it is in Czech, but I guess Google Translate can help)...
Shortly SKODA has published a TPI (it stands for Technical Product Information) number 2053062/2, published on the 4th of July 2019. It describes mentioned problem - the memory is sporadically reset)
Affected instrument clusters
5E0 920 730E
5E0 920 731E
5E0 920 780E
5E0 920 781E
5E0 920 930E
5E0 920 931E
5E0 920 980E
5E0 920 981E
And the solution is a new SW...
Mine is listed and I've already visited SKODA service and SW was updated. It is too early to say it is fixed... (only few KMs driven), but I hope it is...
So I would recommend to visit SKODA service and ask to upgrade SW of the instrument cluster (you can refer to the TPI number, but I believe they can find the issue by themselves)