WinWaitActive("I/M Period End Processing",5) stalls autoit

[anonymous]

{{
WinActivate("I/M Period End Processing")
WinWaitActive("I/M Period End Processing",5)
}}

Autoit appears to be waiting indefinitely for the listed window. I suspect it may have to do with the "/".

I can substitute:
{{

WinActivate("I/M Period End Processing")

;~ WinWaitActive("I/M Period End Processing",5)

Sleep(1000)

}}

This can get me past this and I can ControlClick whatever I need next, but I hate to blindly send Enter and/or Clicks as it will inevitably fail.

Window Summary Info:

Window <<<<

Title: I/M Period End Processing
Class: m90
Position: 431, 146
Size: 475, 327
Style: 0x96CA0000
ExStyle: 0x00000101
Handle: 0x014C0876

Control <<<<

Class: PvxButton32
Instance: 3
ClassnameNN: PvxButton323
Advanced (Class): [CLASS:PvxButton32; INSTANCE:3]
ID:
Text: Only Remove Transaction Detail
Position: 98, 77
Size: 350, 14
ControlClick Coords: 310, 9
Style: 0x54000000
ExStyle: 0x00000000
Handle: 0x00B9093A

Mouse <<<<

Position: 842, 254
Cursor ID: 2
Color: 0xD4D0C8

StatusBar <<<<

Visible Text <<<<

Full Period End Processing
Only Remove Costing Tiers with Zero Quantities
Only Remove Transaction Detail
Only Remove Detail History
&Proceed
&Cancel