Are you limited to the number of sub reports you can have on a main report?

I have a report and when I add my seventh sub all the data on the report disappears. I know the subs are working but just having issues getting all the subs on the one report.

:confused:

There is a limit but I think it depends on the amount of data in each sub report.

I have just created a report with ten sub reports each having omly one field and it works.

I have in the past fallen foul of the limit if the sub reports contain more data the limit it stopped me at was 7