Sub Report only working on first page of Report

Hello,
I have a Access report. In the detail area I have my sub report. When
I view the report only the first page contains information in the sub
report. The following pages the sub report is not there. Again I do
have the sub reports in the detail section. There are many records
that match. 90% of the report has matching records in the sub report.
I do not understand why only the first page is bringing up records.
Any ideas? Thank you so much for the help!

M

.