Red Error

[McNistor]

Although this is related to plug-ins is not exactly about them. I'm sure our Hirazi will move this thread to where it belongs if here does not.
(Moderator edit: luckily, Hirazi Blue has nothing better to do - HB)
What I'd like to know is if it's possible to get rid of the red lower error bar that appears with every loading of a scene that was saved with custom plug-in/render which is no longer installed.
I've ignored them so long, but no longer! I declare war to "scene loading red error bar"!

[xsisupport]

For a custom renderer, usually the only way is to merge the scene into a new scene.

For other plugins, you have to get rid of the custom preference.