WowAce

What steps will reproduce the problem?
1. Update to current version 1.10.30
2. Enter raid finder dragon soul raids
3. Engage final boss in either section
4. Game crashes mid ways in combat. Complete lock up..client becomes unresponsive and I have to alt+tab to force wow to close via windows task manager. This happened in three consecutive attempts.

What is the expected output? Expected output if for the fight to conclude normally. What do you see instead? The game becomes completely unresponsive and I have to force wow to close via windows task manager.

What version of the product are you using? 1.10.30 enUS
Exact version: (e.g. v1.8.1, release)
Locale: (e.g. enUS, deDE, ... or just write "french", ...)

Are you using Parrot with embedded libs (if you don't know that means yes)? yes

Do you have an error log of what happened? No, I was forced to close wow via windows task manager and there was no error report any of the three times it happened.

Please provide any additional information below.
I systematically eliminated other mods in an attempt to isolate the problem as I had only updated a few other mods recently since my last successful completion of these instances.  The problem continued until I switched out parrot for msbt.  The problem went away completely when switching to a different combat text mod.