Processes in Microsoft 365 Insider for installing preview builds, activating subscriptions, and keeping apps up to date with the latest Insider features.
I've sent off the feedback. This is the error in the log.
C23-92E3F82446DC","IOC":"YES","UpdateName":"Microsoft Excel Update 16.98.0 (25042727)","Operation":"Begin","IsSilent":"NO","AppID":"XCEL2019","UpdatePkg":"Excel_16.96.25042021_to_16.98.25042727_BinaryDelta.pkg","NeedVerify":"YES"}
[Microsoft Update Assistant] ErrorsAndWarnings: {"Error":"Failed with reply: Unexpected error occurred with termination status code: 1","UpdateID":"C9BB0F3E-0046-4F09-BC23-92E3F82446DC","Operation":"Install","AppID":"XCEL2019"}
[Microsoft Update Assistant] InstallUpdatesTask.UpdateStatus: {"UpdateID":"C9BB0F3E-0046-4F09-BC23-92E3F82446DC","AppNameChanged":"NO","IOC":"YES","UpdateName":"Microsoft Excel Update 16.98.0 (25042727)","Operation":"End","IsSilent":"NO","AppID":"XCEL2019","BundleVersion":"16.96.25042021","UpdatePkg":"Excel_16.96.25042021_to_16.98.25042727_BinaryDelta.pkg","NeedVerify":"YES","Success":"NO"}
[Microsoft Update Assistant] InstallUpdatesTask.RemoveClone: {"AppNameChanged":"NO","UpdateID":"C9BB0F3E-0046-4F09-BC23-92E3F82446DC","UpdatePkg":"","AppID":"XCEL2019","Success":"YES","UpdateName":""}
[Microsoft Update Assistant] Update.InstallCleanUpForApp: {"AppID":"XCEL2019","UpdateID":"C9BB0F3E-0046-4F09-BC23-92E3F82446DC","AppState":"16"}