Make a sample project that demos this issue and share it here as a zip file containing the source.
What version of Corona are you using specifically. Give the version number. Ex: Latest daily build as I type this is 2018.3228
Also, what specific devices, os, and os versions are you seeing the issue on? This is the kind of detail you should always share when you say something doesn’t work. Also, you’ll need to specify it anyways if you end up filing above.
That said, I think if you share your demo project with us, we’ll be able to help you.