Train sounds gone from a savegame

Issue description

In my current savegame, the trains are silent. Other sounds (including the bells from the level crossings) are audible.
The trains in other and earlier savegames do have sound.

This issue persists even if you close and restart COI, it really seems to be connected to the savegame.
Unfortunately, I don't know what exactly happened between those two savegames.

I am just confused, because "some entity-type becoming silent" wasn't on my bingo-cart when it came to "savegame-related issues"

Reproduction steps

Steps 4-6 don't provide 100% reproduction rate. I do not know the specific triggers.

1. Load attached save 'Save_YesChuggaChugga.zip'
2. Find a moving train my moving the camera to the left
3. Hear the train go chugga chugga.
4. Load attached save 'Save_YesChuggaChugga.zip' again
5. Zoom out, move the camera around, zoom in again, then move to the train found in Step 2
6. Don't hear the train go chugga chugga
7. Load attached save 'Save_NoChuggaChugga.zip'
8. Find any moving train
9. Don't hear the train go chugga chugga

Game version and build number

Update 3 | v0.7.9 (b495)

Operating system

Windows

Attachments

Save_YesChuggaChugga.save

Save_NoChuggaChugga.save

Player.log

25-10-03_09-35-10_8771.-.Kopie.log

The game does sometimes remember the chugga chugga after playing some 10+ minutes?
Say, are there any logs I can provide to help?

Say, are there any logs I can provide to help?

%AppData%\Captain of Industry\Logs
%USERPROFILE%\AppData\LocalLow\Mafi Games\Captain of Industry
%USERPROFILE%\AppData\Local\Temp\Mafi Games\Captain of Industry\Crashes

Attached two log files, but the crashes-directory does not exist. Never had any crashes with COI, so that's no surprise on my side.