With R8 on the config JSON cant be parsed

[DexterBishop]

Describe the bug

Fetching the Config in release builds results in the following error:
Fetching config JSON was successful but the HTTP response content was invalid.

Debug builds work normally.

The issue is likely related to R8.
If i disable R8 or adding the following line to the ProGuard rules file every thing works fine:
-keep class com.configcat.PercentageOption { *; }

To reproduce

Build a release app and fetch a feature flag with percentage option.

Expected behavior

Should return the feature flag.

Screenshots

[z4kn4fein]

Hi @DexterBishop, thank you for reporting this issue! We are working on the fix and will let you know when it's released.

[z4kn4fein]

Hi @DexterBishop, we've released a new version (v10.4.1) that contains the fix, could you please try it? Thanks!

[DexterBishop]

Hi, the new Version fixed the problem. Thanks for the quick response.