Dataflow will not refresh

I have a data flow that automatically pulls in files that update daily from Sharepoint. It has worked for months. I have it scheduled to refresh everyday at 8am. I noticed this morning that the refresh did not occur so I tried to manually refresh it. I got the initial pop-up in the top right that said refreshing, but I never got the spinning wheel next to the last refresh date. Now the refresh symbol is greyed out so I'm not able to click it. I went into the table view and the data is pulling in, but the refresh won't go. Is there another way to troubleshoot this issue? 

Update:

I have other dataflows that did update. It's just this one that seems to be stuck. When I click on the three dots to see options, it shows the option to cancel refresh; however, when I click that, it says there is not currently a refresh in progress. So it seems like it's stuck starting the refresh. Since my other flows are working, I do not think this has to do with the outage. Has anyone experienced this?