Also adding to the above discussions; if there is no data captured in the report, it may not broadcast.
You may like to see delta for the daily report if the report is fetching any data or not?
Also you may like to debug or see if any third party tool is involved in broadcasting reports or you are using standard BeX Broadcast settings tool to send the reports?
If there is third party, what is logic/procedure for them to pick the report from the location you are targeting it to?
Or if there is any ABAP program being used for this, then depending on the logic/settings, it might filter at times.
Please let me know if this helped, or give more details to find more appropriate answer for your query.
Thanks,
Shyam