I have an application that uses the save function of the drawing component "canvas", as a method to create a folder in the root directory of the mobile.
It has been working well for months, but when I recompiled the application (without having modified anything), it has stopped working on my mobile with Android 10, however when installing the application on another mobile with Android 4.4 it works. I have tried many things to fix it, but there is no way. I really appreciate if someone can help me.
I have created a small application to test the failure separately. Attached screenshots of the blocks.
If you need more information, tell me.