How to remove data encryption for Universal Windows Platform apps

Question

*This text has been translated from Simplified Chinese.

This device initially has device encryption and Bitlocker enabled. Later I turned them off, but UWP Apps' data files are still encrypted. I've tried unencrypting the property, but I get "Unable to apply property, the parameter is incorrect". Then open the "decrypted" file with any app will show "The APPX file cannot be accessed because it is not encrypted as expected." I cannot copy or compress the file without unencrypting it. How do I remove this unbelievable setting?