No preview image showing up when I plug the Viewer node in. I read elsewhere that I needed to render the image first. That worked for a little while but now it doesn't work anymore.


Just toggle one of your nodes off and on again.
Viewer/Composite nodes refresh only when there's a change in the compositor.

You can use M on your keyboard to Mute/Unmute a node.
Or just disconnect and reconnect it.

enter image description here

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  • $\begingroup$ Thank you very much! $\endgroup$ – Collin Chamberlain Jan 18 at 4:47
  • $\begingroup$ Hello :). If the answer helped you, please mark it as accepted , so others can easily find it. Thanks a lot. $\endgroup$ – Jachym Michal Jan 25 at 22:24

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