NVIDIAGameWorks / NVIDIAGameWorks/rtx-remix

[Runtime Bug]: Railroad Tycoon 3 - Crashes when loading cutscene video

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#913 2 comments 0 reactions 0 assignees View on GitHub

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bug runtime triage
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Description

Describe the bug

A bug happens where the RTX Remix Runtime crashes when the game switches to any cutscene video.

How do you reproduce the bug?

On an unmodified version of the Railroad Tycoon 3 install, the intro cutscene causes the runtime to crash immediately after attempting to start the game. If you delete the intro video, the game runs fine, but the Campaign section of the game relies on these cutscene videos looping in the background as a part of its GUI, which causes an additional crash. From what I can tell, the game closes the original process and switches to a new process with a second or so of delay whenever a cutscene video is loaded. Once these cutscene videos are loaded, the new process becomes the game's process until the next cutscene video needs to be loaded.

What is the expected behavior?

The runtime should not crash and should hook into the new process, or should have some setting for a timer to look for a new process if the runtime loses access to the existing process.

Version

1.2.4

Logs

bridge32.log
bridge64.log
remix-dxvk.log

dxwrapper-rt3.log

Crash dumps

No response

Media

Behavior with Remix Runtime Installed:
https://github.com/user-attachments/assets/8faf5e1e-37da-4b33-94d9-a66466067c44

I can upload a video of the expected behavior on an unmodified install of the game if necessary.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the crash while switching between the Railroad Tycoon 3 cutscenes, then compare bridge32.log, bridge64.log, remix-dxvk.log, and dxwrapper-rt3.log around the process transition. Trace how the runtime handles the original process closing and the replacement process starting. Done means cutscenes load without a runtime crash and the replacement process remains supported.

Written by the indexing model from the issue text.

Assessment

Domain
desktop, game-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
32/100

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