Muntin in triple casement

[jpremodeler]

in any plan, add a 3 section casement 72" wide. change the movable size to 20". Chief sticks a vertical muntin in the fixed glass. anyone know why? if you make a fixed glass of any width it does not add it. I guess work around is left, fixed, right units, then mull.

the same thing applies to sliding windows

[billemery]

In the DBX under the lites tab; uncheck lites in fixed.