The grid was problematic for V1.19.72 when using adjusted DPI screen (e.g., Layout and scale of "150%"). The grid numbers were also off. I made the adjustments in bold to the following portion of "creategroups:" code segment and it addressed the problems on my PC.
creategroups:
gui,destroy
setGuiColors()
loop,%NGroups%
{
TriggerTop := %A_Index%TriggerTop - ScreenTop
TriggerBottom := %A_Index%TriggerBottom - ScreenTop
TriggerLeft := %A_Index%TriggerLeft - ScreenLeft
TriggerRight := %A_Index%TriggerRight - ScreenLeft
;adjustment for dpi of screen
TriggerTop /= A_ScreenDPI/96
TriggerBottom /= A_ScreenDPI/96
TriggerLeft /= A_ScreenDPI/96
TriggerRight /= A_ScreenDPI/96
TriggerHeight := TriggerBottom - TriggerTop
TriggerWidth := TriggerRight - TriggerLeft
GridTop := %A_Index%GridTop
GridLeft := %A_Index%GridLeft
;Removed %A_Index% and now centering properly
TextTop := TriggerTop - ScreenTop
TextTop += Round(((TriggerBottom - TriggerTop) / 2 ) - 11)
TextLeft := TriggerLeft - ScreenLeft
TextLeft += Round(((TriggerRight - TriggerLeft) / 2) - 5)
