Hi @Lenasojan
Hope you're doing well and thanks for reaching out. We are sorry for the trouble you are experiencing.
Have you started experiencing this issue recently after an update, or was it occurring earlier as well?
What is the version of the Adobe Scan App and the OS (Android/iOS) you are using?
Please share a small video recording of the steps you are taking and the issue as it occurs for more clarity and investigation.
In the meantime try clearing the App cache and reboot the device once and see if that helps:
Android: Go to System Settings > Apps > Adobe Scan > Storage > Clear Cache
iOS: Open Settings, go to General, and select iPhone Storage. Find and tap the app you want, then tap Offload App and confirm. Once done, reinstall the app from the App Store and check.
Note: Offloading does not affect your files.
~Amal