Data factory custom activity (batch) -> storage - 403 BlobAccessDenied

[nawaahme]

I'm getting blob access denied msg when Custom Activity of Data Factory is running

Operation: Custom activity trying to converts csv to excel and executing inside batch node.

{"errorCategory":0,"code":"BlobAccessDenied","message":"Access for one of the specified Azure Blob(s) is denied","details":[{"Name":"BlobSource","Value":"https://xxxxxx.blob.core.windows.net/customactxxxxx/xxxcustomactivity/ICSharpCode.SharpZipLib.dll?sv=2018-03-28&sr=b&sig=kOQqTE7jirHRQXk2ljMZ5Mmxu0BBpF9rC%2BHsZS0h3gQ%3D&st=2023-02-06T04%3A46%3A13Z&se=2023-03-08T05%3A46%3A13Z&sp=r"},{"Name":"FilePath","Value":"D:\batch\tasks\workitems\adfv2-xxxqavmpool01\job-1\da5de2e3-413e-4288-978f-e232f08316eb\wd\ICSharpCode.SharpZipLib.dll"}]}

The issue started occurring after we enabled storage account to accept traffic from specific VNET
allowed ADF to connect ,Corp IP ranges and Added Batch node IP address

Azure Batch

Batch settings

[nawaahme]

recreated batch node pool to resolve it