MultiSwitch under 1.7.2044

I’m still having problems with MultiSwitch under 1.7.2044.

I had to add a new MS this afternoon and in the process upgraded to MS ver 1.7. The new switch installed fine and the button layout was back to what we were used to under 1.5, two rows of 4 buttons. I can change the button labels in this switch without a problem.

However the pre-existing MS switched still have the earlier appearance, 1 row of 5 buttons and 1 row of 3 buttons, and I cannot change the button labels regardless of what I do.

Is this a known problem with MS 1.7 or UI 1.7.2044?