Reloading a Stimulsoft report from a string is missing the original table data

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reporting

hi everyone
I saved a Stimulsoft report (containing some variables and a table) to a string using this method:

string s = report1.savetostring();

When I reload this report in other Stimulsoft report, all data in the second report comes except the table data:

report2.loadfromstring(s);

What is wrong here?