Ensure the active account matches the exact email address used to buy FPse.
The most common trigger is an incorrect active account in the Google Play Store. Open the app. Tap your Profile Icon in the top right corner. Tap the drop-down arrow next to your email address. fpse license check failed exclusive
Change the setting from Optimized or Restricted to . Repeat this exact process for the FPse app. Ensure the active account matches the exact email
If you're still stuck, it's best to contact the developer directly or check the FPse support forum for specific device compatibility issues. If you'd like, let me know: purchase the app recently or has it worked before? Are you using a Android version is your device running? fpse license check failed exclusive