Hello, I tried both plugins, active-x and movie plugins, both suffering same issue.
It causes the entire DOpus to freeze until the file selected was finally loaded into preview plugin.
When selecting videos files to preview, it doesn't have any kind of issue.
But until i selected a file that has a separated .ass subtitle file that has the same name as the video, it will freeze the DOpus for few seconds until the preview is shown.
when looking it closely while simulating the issue.
Selecting the video files, i can see the plugin UI show for like 0.5 second, then it dissappears and DOpus freeze for few second.