This article covers the following platforms
MSFS 2024
MSFS 2020
ATS
FSX
Prepar3D
Not every file override in a Simstaller VFS Report is a problem. As explained in How the MSFS virtual file system works, overrides are the foundation of how MSFS loads add-ons — mods like Flow could not exist without them.
Overrides matter when you notice an issue in your sim: fonts that look wrong, avionics acting up, lighting or other visual effects that seem off. When that happens, the report shows which add-ons to consider disabling while you look for the cause.
Overrides with a warning icon
A warning sign and message mark file overrides that have the potential to affect your entire simulator. These are grouped into common issue categories. You can respond in a few ways:
- Ignore it. Some overrides are correct and expected. An add-on may need to override core files to add functionality or change sim behavior. For example, Flow is a menu utility, so it replaces existing menu UI elements — it shows up as a “conflict,” but it is one you expect.
- Tell the developer. Create and export a report and send it to them. Developers are often unaware of how their files affect the simulator as a whole, and a report could lead to a fix if there is a real issue.
- Uninstall it. If the marked files are causing problems, remove the offending package from your simulator.
Overrides without a warning icon
Some file overrides appear in the Overview section without a warning notice. These are informational, and the package likely isn’t causing issues.