Currently, when an individual plugin in a chain goes missing (either moved, deleted, or not found in the startup plugin scan), the slot changes color to alert you it is missing. I recently had a plugin that lost it's authorization which prevented the signal from passing through the channel. Since there was no indication of a problem, it took quite a while to track down that problem.
Would it be possible to also change the slot color if the plugin still exists but has lost authorization? That would be very helpful for troubleshooting.