Same problem for all m12 users after installed the one ui 5.1,After changed the wallpaper color palette wouldn't appearing even we manually turn off and on the color palette it showing old wallpaper colors.I asked to fix this problem by reporting many times. But they didn't fixed.
As per your query, we request you kindly share the log file. Without a log file, we cannot analyze this issue. This will help us to further investigate and resolve this issue.
To attach the log file: Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).
Note: To ensure relevant log information is included in the error report, submit the report within 3 minutes of encountering the bug or error, and do not terminate (swipe away) the Samsung Members application until you are notified that the report has been sent. This can take up to 5 minutes.
