Upload CSV to RStudio Cloud - Error "Unexpected response from server"

I'm trying to do a simple task, and know the steps to upload a csv dataset from my local pc into my working directory in RStudio Cloud. However, each time I've attempted to upload I get the same error "Unexpected response from server". I'm only trying to upload a single and small csv file (1.88 MB). I've tried to upload different files (larger and smaller, all csv), from different drives, tried setting new working directory in RStudio, and have scoured through many resources unable to find this same problem. If anyone has an idea of why this might not be working for me, I would very much welcome any helpful comments. Thank you!

Please see attached screenshot.