version management not updating in printpreview of the me22n or me23n

Dear All,

i am fuctional consultant

we have activated vesrion management for our PO's, the thing is after making any changes we are updating version,and if we see the print preview with t.code Me22n or Me23n vesrion is not updating, where as if we see in ME9F and spool version is updating.

only vesrion number and we have changed the header text aslo instead of purchase order after vesrion change it should be Amend purchase order of verion-1 (ex). rest alll like if u chage the qty or price and total value calucation all refelecting in Print preview.

for this we have tested with standard for MEDRIK for that aslo in print preview with t.codde Me22n and Me23n vesrion is not updating , where vesrion is showing in me9f and spoll.

Please help is there any config we need to do or is it a bug.

Regards

Venu gopal