I’m experiencing an issue with offline maps on the following device:

Device:​ vivo X200 Ultra
Android version:​ Android 16
App version:​ Mapy.com 26.9.3 (version code 26090302), official Google Play version
Steps to reproduce:​

Select external storage and download the Beijing offline map.
Wait until the app shows that the download is complete.
Turn off both Wi-Fi and mobile data. The Beijing map can still be viewed offline.
Close the app by removing it from the recent apps screen.
Reopen the app while still offline.
Actual result:​
Beijing is no longer shown as downloaded, and the download button reappears. The Beijing map can no longer be displayed offline.

Expected result:​
Downloaded offline maps should remain available after restarting the app, without an internet connection.

Additional observations:​

Switching to another app and returning to Mapy.com without closing it does not cause the issue.
When I select internal app storage instead, the download progress does not advance.
I did not uninstall the app, clear its data, or manually delete any map files between downloading and reopening it.
Could you please investigate whether this is a storage or offline-map state restoration issue? I cannot confirm whether the map files are actually being deleted or whether the app simply fails to recognize them after restarting.

Thank you.