can't upload pdf files using uploadthing

hi, i recently discovered uploadthing and i considered using it on my side project (where i upload a ton of pdf files). everything worked as expected until i noticed that i just can't upload pdf files. - tried declaring both "pdf" and "application/pdf" in the uploader (the files being uploaded don't hit the set limits) - tried uploading directly on dashboard and the progress bar wasn't moving, when i closed the dialog and refreshed the page it had Uploading status. It still is Uploading on the network tab api displays 200, and when i check the dashboard the file stays Uploading forever. when i upload other types of files, such as images and videos it works without issues.