Setting port exceptions for Windows Firewall via GPO. Is there a limit on the number of exceptions that can be set?

We would like to utilize GPOs to manage our Windows Firewall rule set. We have servers that have different requirements (HL7 connections, other programs) and our doctrine is to only open ports that are going to be used.
We need to be able to audit and enforce these standards, so GPOs seem to make the most sense to me.
The problem I am running into is when I attempt to define multiple Windows Firewall Inbound Port Exceptions. (More than 10) After "Applying and Okaying" I will go to verify the firewall rule-set but I find that quite a few of them are missing. It
seems like I am limited to 8-9 port exceptions per GPO.
I am unable to locate any documentation about this, but we can work around this by creating multiple GPOs. 
Has anyone run into this issue before?
Domain Function level: Windows Server 2008
Tho H. Le

> Has anyone run into this issue before?
No, unfortunately. Our main server FW exception GPO contains 44 rules
with port or program exceptions, and it works flawlessly...
Martin
Mal ein
GUTES Buch über GPOs lesen?
NO THEY ARE NOT EVIL, if you know what you are doing:
Good or bad GPOs?
And if IT bothers me - coke bottle design refreshment :))

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