DX Settings Causing Crashes for Unexplained Reasons

[Commonscout]

Changing DX settings led to me eventually being locked out of the game. In these settings (labeled as dx_settingsold), the game will not get past the title screen. After deleting the settings file and creating a new one fixed the issue, but changing the settings to what I have now causes a crash when a non-profile player tries opening the Breakneck Speed menu the game will crash. Opening that modifier as a Profile player works fine. Additionally, it doesn't save certain settings such as disabling the Music Library background despite turning all backgrounds off to save memory for party play.

To Reproduce
Steps to reproduce the behavior:

1. Use the dx_settingsold dta file
2. Open the game
3. Crash
4. Use the dx_settings file
5. Load up a second instrument with no profile
6. Go to the Breakneck Speed options
7. Crash

A data error will appear, shown below (the number varies)

DX Settings

• dx_settings.dta:

dx_settings.txt

• dx_modifiers.dta:

dx_modifiers.txt

• dx_values.dta:

dx_values.txt

-dx_settings.dta file before it was deleted:

dx_settingsold.txt

Game Information

• Platform: Xbox 360 Trinity Motherboard
• Version: r1551+5c7c9c3
• Song Count: 4331

[Commonscout]

I've found more specific instances of the game crashing via Deluxe settings/features
-In between songs in a set, if two people try to switch difficulties or instruments
-More than one person tries to access Breakneck Speed at the same time
-Crashing when going to Quickplay after Venue Options have been changed (current fix is to change background in Music Library to None and must be done every time when booting the game
-Picking a song after finishing a set in which one instrument was changed (i.e. keys to pro keys)
-Picking a character after switching profiles