SOLVED: blank area in topographic map Alps

[richnobbi]

Hi, I reloaded the necessary topographic files for Alps. Howere there is a blank area which size changes on magnification level. How to solve this issue?
any help welcome Richard

[LaurentG]

Which map is it ? Which format ? Where did you downloaded it ?
Without details, it is quite impossible to help you ....

[Tronpo]

Openandromaps Alps. (The name appears at the bottom right of the map viewer) It is possible that there is a cache failure or bad download. Clear cache and restart the app. Or download again

[richnobbi]

Clearing the cache in android settings solved this issue.