OK, we found the issue and it’s indeed related to the new Gradle Runner step version. Fortunately the issue is really simple to fix: just add a * prefix to the filter.
E.g. instead of:
app-stage-release.apk
use:
*app-stage-release.apk
or
*/app-stage-release.apk
Basically the change was that the filter is no longer applied on the file name, but instead on the path, so if you specify an exact value without * then the full path have to match that. The advantage of the new filter method is that you can now filter by the path too, and not just by the apk’s name. E.g. previously this wasn’t possible: */apk/release/*.apk but now it is!