Command Line Builder throws "Access to the cloud file is denied"

I have several build pipelines in Azure Dev Ops. All run just fine except one.  Below is the console output.

2022-07-27T07:51:33.3488705Z c:\WyBuild\wybuild.cmd.exe "c:\Users\Mark\OneDrive\Builds\Resort Manager Cashier.wyp" /bwu /bu -ve="3.5.17" -vs="3.4.4" -add="c:\Users\Mark\OneDrive\Builds\RMCashier\buildfiles\RMCashierWyBuild.xml"
2022-07-27T07:51:33.3726491Z ========================== Starting Command Output ===========================
2022-07-27T07:51:33.3940099Z ##[command]"C:\WINDOWS\system32\cmd.exe" /D /E:ON /V:OFF /S /C "CALL "C:\agent\_work\_temp\512c9894-8d98-4105-8fbe-7e24765919a8.cmd""
2022-07-27T07:51:33.5446640Z wyBuild Commandline Builder v2.6.18.4
2022-07-27T07:51:33.5899436Z [Error]: Access to the cloud file is denied.
2022-07-27T07:51:33.5899813Z 
2022-07-27T07:51:33.6966686Z ##[error]Cmd.exe exited with code '1'.
2022-07-27T07:51:33.7318512Z ##[section]Finishing: Run WyBuild

But wyBuild is return the error shown above.  But I cannot find what the message means, other than the obvious, and if it is access to a cloud file that is denied, which cloud file?  The add version xml file sdoes not include any network or internet url's.  The command line does not include any urls.  So I am at a loss as to why this is failing in this manner.

Several other tasks on the same build server, using similar files, all work fine. 

Any help would be greatly appreciated.