I just experienced this issue and the files uploaded by changing all of the “-”'s in the file name to “_”
Had exactly the same problem and tried the same solutions.
Replace “-” with “_” solved the problem. Thanks!
No hyphens - brilliant! Worked for me too - so much time spent. That oughta get fixed; Webflow devs?
Lmao, I face the opposite, I replace “_” to “-” and solved the problem.