When I share a sheet with anyone from my account with editing permissions, they can edit the sheet on the mobile app but not from a computer. Yes, they also have a Pro account and it also shows the proper permissions on the "share" page. I have used Smartsheet at my last job extensively and know the software quite well but I have never had this type of issue in the past. When I open the sheet from my personal Pro account, I have the same issue and I have attached a screenshot of where the sheet claims "View Only". I am accessing this sheet from Windows 11 Home on a desktop and I have tried it in both Edge as well as Chrome.