Hi @Ondrej Dragula , I do not have an Android device for reproducing this issue, but I submitted a design change request to the Azure Information Protection team based on your feedback. The Known Issues article does indicate that there are some limitations for Android, including that the Azure Information Protection Viewer on Android can't open protected PDFs documents on devices managed by Intune. It seems likely that the issue you described could be related to limitations with the Android app. Known issues - Azure Information Protection | Microsoft Learn
I have submitted an internal request but if you would like to file a feature request yourself you can also do so in the feedback forum where the AIP product team can respond directly. https://feedback.azure.com/
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