Newb question. I’m using a new addon which comes with pre-defined objects and textures, and most work when dragged into the scene. However, certain ones show in pink rather than their defined Node-based texture. I don’t see any missing image references when I inspect the texture nodes.
Can they be pink for some other reason? Thank you in advance!
Two other reasons: a GPU driver issue. Pretty easy fix, update your GPU driver.
Or, an unsupported image format- something your computer can’t decode. This is pretty rare, it’s probably only things like .HEIC at this point.
Try updating your GPU drivers and we can go from there 
I use Report missing files just to make sure I didn’t miss anything:
It’s probably not the problem since you checked the texture nodes, but it’s very quick to check this way just to be sure.
Is this the Vegetation add on? If so, check the location of the textures. I’ve found with several that the nodes are pointing to the wrong folder (if you go to open one, there will be a textures directory where the actual textures are).
Aha. I know my system is not ideal for Blender and I was warned about slowness given I use a laptop without a dedicated GPU- I didn’t realize it could potentially cause the symptom of what looks like a missing texture, not just basic slowness which I’ve been putting up with thus far. Consider me enlightened. I’ll take a look in this direction. Thank you!
Thank you for the reply - it’s not, but I will make sure to check this when I get to trying that, which I’m sure I will!
I did try this and found it did list a few files, but none relating to the trees at hand, whose node graph I checked for such linkages. I figured I’d get into the missing images investigation afterwards since I didn’t need to use assets linking to them right away, and in fact wasn’t sure which plants they would be invoked by because I haven’t done a complete survey. Thank you for the reply!
Yes. If you use Eevee and operation count of your shader is high than your GPU, your render may be turn pink.
Good point- I believe the limit is currently 16
No, this is shader operation limitation. This measures with machine code operations count, not with Blender. New GPUs have very much operation count, but some properties like SSS or 4D Noises spend too much operation count.
