Reload on grid with nested grids fails

Hello,

Reload a grid by the standard SC reload button doesn’t work when a nested grid is embedded into the main grid. The main grid has some global variables for restrict the search result based on previously set values. Without the nested grid, the reload works and the values passed to the nested grid are correct. Does anyone else encounter problems with reload of grid data with nested grids inside? If yes, is there anybody who found the reason/solution?

Thanks a lot