Message box field in normal grid on portal form causes issue

Hi

We have 2 normal grids on one portal form, out of that one grid had the message box as the first column and second field had the text box as the first column.

As text box does not display long test in the grid so we decided to change the text type column of the second grid to message box, But after doing this change we have seen weird behavior in form.
No matter what button you click it always save random button value in acp and process variable. No value is getting saved in acp and hence in the process variable

Please refer attachment

OriginalPostID-239255