I'm having trouble saving a R dataframe with code as

     string DF = "df";
     engine.SetSymbol(DF, df);
     engine. Evaluate($"save({DF}, file='{df}')");

The moment the saved dataframe file reaches 127MB i get a memory access error trying to read/write where it shouldn't.

Is there any 128MB limit in rdotnet and is there another way to save a datafram?