App crashes when calling updatedMetaData delegate function

The didReceive message function works, but the updatedMetaData function is not called and the app crashed.
Commenting out the updatedMetaData function all works fine.
The SDK version is 3.0.221

Hello @11113 would you be able to share some crash log if possible? that would help me to debug the problem you have faced. Thanks!

Hello @Woo
Our app also experience immediate crash, crash happens even before enter the updatedMetaData delegate function.
Our updated meta data contains only String value and valid JSON.

Crash log

Could not cast value of type '__NSCFNumber' (0x7f9b83814280) to 'NSString' (0x7f9b83813f98).
2022-04-13 13:32:17.745018+0700 mamikos[55097:1616925] Could not cast value of type '__NSCFNumber' (0x7f9b83814280) to 'NSString' (0x7f9b83813f98).