Debugger not working on Hosted workbench on spfx webpart
I have spent a number of months working on a custom SPFX WebPart using standard tools and React. As of Wednesday last week I have been unable to successfully use gulp serve with Chrome to hit any break points to investigate why our latest dev build is failing to fire a third party call. I am using SharePoint Framework 1.7.1 and chrome 64 bit v 74 I see no indicative errors or warnings in console that tell me anything of note but my colleague is getting an error stating 'Failed to load debug manifests' Can anyone suggest a solution