I've a problem (again) when the MCCB is used in an Excel addin environment.
If the MCCB is used on a normal form (non modal) and you scroll (mouse wheel) inside the dropdown (grid) then the complete addin hangs.
If you do the same in an modal form, everything works fine.
Sample project is attached (rename to zip)
Steps to reproduce:
button2 -> opens modal form (OK)
button1 -> opens non modal form (not OK)
open dropdown and then scroll inside grid with mouse wheel
Is there any workaround? (even if I have to disable mouse scrolling, would be better than an hanging application)