Image Placeholder tags not working - help!

I have an image heavy (100+ images) manuscript, and I am attempting to use Image Placeholder Tags to reduce my file size as I write. However, when I compile (to PDF), the images do not appear.

Here is what I have tried:
<$img:M2U02950-3.tiff> where the file, “M2U02950-3.tiff” has been imported into my Binder
<$img:Resources/M2U02950-3.tiff>, where the file “M2U02950-3.tiff” is in a folder titled “Resources”, and the Resources folder lives in the same folder as my Scrivener project.

Any idea why this isn’t working?

I am on a Mac.

Does it work if the .tiff extension is removed from the name in the placeholder?

See the sample file attached.

Slàinte mhòr. (92.1 KB)

This test project has one tiff file in the binder and another in an external folder. Both compile okay in tests. (Keep the folder structure when unzipping.)

Hope this helps.

Slàinte mhòr. (183 KB)