Why does my Eevee renders freeze at 98%? I have here a strange situation today. On Blender 2.81 and 2.82, while trying to render a scene file, that I've been assembling for years, it strangely now keeps freezing at 98% and returns several "TIFFReadDirectory:Warning, unknown field with tag 18246 (0x4746) encountered"
...But I don't even have Tiff textures on the objects, they are all .png
...Some versions ago (from 2 months ago) render just fine, but from some point on, this error occurs. 

Anyone knows what can be this related to? At least a clue?

It's surely not memory, I have a 12Gb Graphic Card (TitanX) and I can deactivate all collections (having just a few Mb of memory in use) and I still get the error. 

Thank you very much for the attention!

Best regards,

Rogério



Edit: I've found the reason of the problem! It was some TIFF images loaded on a no longer existing object and the freezing at 98% was due it being render a 2nd ViewLayer that had all the objects turned on:

This view layer wasn't being used on the compositor and as such I wasn't seeing this render result in any place until now. Thanks for all the help!
The only reason for this warning is that Blender is trying to read a TIFF.

Objects are not the only things that might use TIFFs. You might check your skydome or environment texture. If you have BlenderGuru's Pro-lighting Skies, then it's probably loading TIFFs at some point. You may have some other addon that uses TIFF images.

If you can upload a copy of your .blend file, someone here might be able to help you track down what images are causing the problem.