Scrcpy can not access clipboard when adbd running in root

[SkipM4]

My device is running LineageOS 23 userdebug so "adb root" could make adbd running in root mode
But scrcpy can not copy texts from device's clipboard
If adbd is running in normal user it could read and write clipboard
Is this a bug?or is it normal?

[rom1v]

It is a known issue that copy/paste does not work with root: #5275 #4127

[Giantvince1]

This issue has a fix in my PR #6518 already; I actively recreated the direct Binder interface to IClipboard to subvert Java context checks when the server is ran as UID 1000 (system user).