The Adobe Experience Cloud Debugger is indeed an official tool developed and provided by Adobe, so it is as reliable as the DigitalPulse Debugger.
I would argue that it is more user friendly, since it provides friendly names for the evars and sprops. It also works with the rest of the Adobe Experience Cloud stack, providing debugging info for not just Analytics, but also Target, AAM, MCID, and more,
Neither omnibug nor the Adobe Debugging Tool provide the functionality this user is looking for. Namely, instead of just prop12, they want to see the friendly name their organization has given prop12, e.g. prop12 - Time Parting (c12) or whatever they use it for.
I've had this issue with the Adobe Experience Cloud Debugger. I usually just log in again, close the debugger and/or restart chrome.
Please use the below Adobe Debugger Tool, Just add the below code on "Bookmark" and use it. May I know hich debugger you are currently using?. Else go with omnibug from chrome extension, refre the below URL to add it in your extension.