[BUG] - Patching Days/Recoded cutscenes causes Steam versions to softlock

[Bobbypin12]

OpenKH Build
24.10.14.0

OpenKH Program
OpenKh.Command.IdxImg.exe

Describe the Bug
Trying to patch Mare.pkg in order to mod the cutscene movies (days/coded).
If using "EGS" version 1.0.0.8 (pre-June 2024 update) Mare.pkg, all goes well and the mod does what it should.

If modding "Steam" Mare.pkg, the launcher gets stuck on an infinite loading screen. The one where its a black background with the heart logo in the bottom right just spinning forever.

Also both Mare.pkg from the newest game versions from Steam and EGS produce an odd error. They will show an "Unknown filename (hash: XXXXXXXX)" in the command line.
The newest EGS version will still load my mod but unsure if it will have any unforeseen issues. The steam version will have the already mentioned issue.

To Reproduce
Steps to reproduce the behavior:

1. Extract Mare.pkg
2. Find applicable file and make modification
3. Create folder structure to match what it is in Mare.pkg with the top folder being "Mare.hed_out" and keeping it in loose file format
4. Essentially, make it as if making any other pc patch file mod but not packing it.
5. Add Mare.pkg, Mare.hed, and the mod folders into openKH directory so they are in the same folder as "OpenKh.Command.IdxImg.exe"
6. Open CMD, navigate to where "OpenKh.Command.IdxImg.exe" is and run; OpenKh.Command.IdxImg.exe hed patch Mare.pkg Mare.hed_out
7. A new "Mare" folder is created with the modified Mare.pkg and Mare.hed
8. Add those to the "image" folder in the game directory
9. Boot game
10. As stated above, EGS is good (aside from the odd issue using the newest version) but steam has the mentioned issue of not booting.

Expected behavior
Expect the launcher to boot up without issue on both storefronts

[Delta-473]

Out of interest what are you trying to do to the cutscenes just replace them with different video's?

[Bobbypin12]

I am wanting to install a couple of mods for both "movies" I put together.
-No subtitles
-Replacing reused themes (swap the reused music tracks with the HD remix versions).

I discovered that OpenKh.Command.IdxImg.exe can patch Mare.pkg and I put those together. I just don't want to publish the mods until the tool can work with steam Mare.pkg