I usually notice these while I'm in the VAB, but I'll notice a flicker in the texture of the header in the floating huds for KER, meanwhile my player log is spamming the following:

Resource ID out of range in GetResource: 1360342 (max is 1048575)
(Filename: ./Runtime/GfxDevice/GfxResourceIDMap.h Line: 109)
At a very high speed, if left like this the game will eventually crash. (Player log usually is 500+ mb by the time I notice)

I've been leaving a tail -f on the Player.log so I can notice when this happens.

The only addons I'm currently running is the current KER 1.1.7.1, X Science Continued 5.26, and Zero MiniAVC 1.1.0.1