using full path for defaultTemplate yaml does not work, only shortest path

[ksdavidc]

Describe the bug
If I use the full path to the file, the template doesn't work.
Using the short path works, but I want to be able to use the full path, as I would like to use this for the default in the vault.

demo:

Slideshow.mov

Samples to Reproduce
see above
Expected behavior
either form of the link should work