I recently discovered a sound glitch on my game, and I remembered a long time ago that there was a fix for previous issues if you switched back to 32bit.
It would seem that I can run the game on 64bit, and everything but the Movie/Cinematic sounds work. I find this is some kind of issue with 64bit in General that the Lotro Team should try to troubleshoot.

The game runs fine on 32bit, and all of the features work despite my PC having the option to run on 64bit. My PC is a Laptop, but I've never had issues with any game playing on 64bit except this one.
Worst part about this being a fix is the 32bit client will be retiring soon, and I feel the Lotro Team should not retire 32bit if they can't find a fix for the Movie/Cinematic Sound glitch for 64bit.

In case it's needed my PC Specs are:
AMD Ryzen 7 3750H with Radeon Vega Mobile GFX 2.30 GHz [Processor]
Nvidia GeForce GTX 1650 [Graphics Card]
16.0 GB [RAM]
64-bit operating system, x64-based processor
Windows 10