Custom variables # of rows not saved

1, Go demo --> Visitors --> Custom Variables
2, Change e.g. to 25 rows
3, Go any other page
4, Return to Custom Variables

of rows is set back to original 10, I would expect this to be saved and remain as user-defined.

Same behavior for:

Visitors --> Settings
Visitors --> Location & Provider

This will be improved ini the next release prrobably