Hi there @nramsey, let's see what we can do on this.
It sounds like you're trying to create a subfolder in a path that has too many of them.
Do you get the same experience if you create it somewhere else or at the top of the hierarchy?
If you do, send me a screenshot (without any personal info) of the error message so that I can have a better visual of it.
Give me a nudge whenever you have any updates. Thanks!