Summary of the Issue
Experiencing an issue with Blender Source Tools when exporting DMX files for compilation. Identified a problem specifically with version 3.4.1 of the tools, running on Blender 4.5 LTS, where the DMX export process fails, preventing successful compilation.
(ERROR: 'EXCEPTION_ACCESS_VIOLATION' (assert: 1)
Key Findings
* Working Combination: Blender Source Tools v3.3.0 with Blender 4.2 LTS successfully exports DMX files, which then compile without errors.
* Failing Combination: Blender Source Tools v3.4.1 with Blender 4.5 LTS fails during the DMX export process, leading to a compilation error.
* Troubleshooting Insight: When a DMX file successfully exported using v3.3.0 is compiled with the v3.4.1 toolset, it works correctly. This suggests the issue lies with the DMX export function of Blender Source Tools v3.4.1, not with the compilation process itself.
* Reproducibility: The issue is consistent and can be reproduced with any project file, as long as it adheres to the specified vertex limitations.

Export Path
The root folder into which SMD and DMX exports from this scen are written.
Value: //
Warning: the blend-file relative path prefix "//" is not supported for this property."

Looked into similar issues and found a person experiencing similar issues with their add-on suggested this...
"As an update, I’ve found that adding:

options={'PATH_SUPPORTS_BLEND_RELATIVE'},

to my StringProperty fixes this issue."

Another suggestion...
"@JulianEisel thanks for the feedback, renamed to:

PROP_PATH_SUPPORTS_BLEND_RELATIVE ... this way we can also have,
PROP_PATH_SUPPORTS_VARIABLES
PROP_PATH_SUPPORTS_UDIM ... etc."

I'm not sure if that'll help since I don't code but just reporting my findings.