Cdr software has not been restarted, the plug-in is invalid or there is an internal error in the plug-in. According to the query CDR tutorial display.

1, the plug-in is invalid or there is an error inside the plug-in: reinstall the plug-in or select another version of the plug-in for installation.

2.cdr software has not been restarted: after the plug-in is installed, cdr software needs to be restarted to make the plug-in take effect. After successfully installing the plug-in, restarting the cdr software will get stuck for a few seconds, and the plug-in will appear after re-entering the operation interface.