# DRM - App Tester - GameMaker:Studio

**URL:** <https://community.amazondeveloper.com/t/drm-app-tester-gamemaker-studio/5919>\
**Category:** Q&A\
**Tags:** appstore-fire-device\
**Created:** [July 29, 2024, 2:56pm UTC](https://community.amazondeveloper.com/t/drm-app-tester-gamemaker-studio/5919 "2024-07-29T14:56:17Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![jzavala](https://avatars.discourse-cdn.com/v4/letter/j/dfb087/32.png) [@jzavala](https://community.amazondeveloper.com/u/jzavala)\
**Post date:** [August 20, 2024, 10:47am UTC](https://community.amazondeveloper.com/t/drm-app-tester-gamemaker-studio/5919/16 "2024-08-20T10:47:42Z")

</div>

Hello @Levon

-Gradle config still same as I published previously.

-I’m not testing IAPs yet.

-I’m not getting callbacks on the DRM callback _ **onLicenseCommandResponse** _ calling _**LicensingService.verifyLicense(activity, this);**_ function when I use the _ **debug** _ APK, if I use _release_ APK I’m getting callback but I can’t test with _ **AppTester** _ with the _ **release** _ APK it’s documented.

-I have direct contact with GameMaker team and this looks more be an issue in the _ **amazon-appstore-sdk** _ than in GameMaker.

-I already removed all proguard related code to confirm that isn’t the issue and can’t be the issue due callback works release mode, and on debug mode if _ **db shell setprop debug.amazon.sandboxmode noone** _ but I don’t get callback if _ **db shell setprop debug.amazon.sandboxmode debug** _. this make me think that the issue it’s on the amazon-appstore-sdk side.

I can send you a minimized project to build the APKs and test the issue, or just send the APKs if help to move forward.

Regards

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_[View the full topic](https://community.amazondeveloper.com/t/drm-app-tester-gamemaker-studio/5919)._