We have confirmed a bug in the notification permission dialog in version 8.5.3 of the Android version of the “World Transit Maps” app.
Specifically, when launching the app, a dialog box asking for notification permission appears, but if you select “Don’t Allow,” the permission dialog box will appear every time you launch the app from the next time onwards (if you select “Allow,” the dialog box will not appear from the next time onwards).
We are currently preparing to release the latest version, 8.5.4, which fixes this bug, and expect to release it within a few days after Google’s review. In the fixed version, if you select “Don’t Allow” for notification permission twice, the permission dialog box will not appear thereafter.
We apologize for the inconvenience. Please be patient until we improve the issue.