I can confirm the above following a call with Workfront support. You need to be running the most up to date version of Chrome (or three versions prior, that is as far back as they will support) 

it's super frustrating. if you do get a response i'd be interested to hear the solution

sadly neither of these two options worked and the error message remains. thank you for your suggestions though. 

Is anyone else experiencing the challenge in the screenshot. It's been going for about 3 days now and is really limiting my progress