Missing data when combining files from Azure blob

I'm trying to create a PBI report for marketing analytics for my company, and am doing so by connecting to D365 through an OData feed.  However, D365 can only import activity data (email opens, website visits) via an Azure blob.  I created an Azure blob and I can see all of the data I need in there.  When importing to Power BI, I can see all of the data that I want stored as CSV files.  I choose to combine all the files in order to create one table of all activities, but for some reason, all of the files for two specific activities are missing.  I received no error messages when trying to combine files and did not check the box that said "skip files with errors."  I have absolutely no idea what is happening to that data, can anyone provide any insight?