How do I catch this when it only happens for some players?

Capture it automatically from the player's device with the full stack trace, the device and OS, the build, and a breadcrumb trail of what they did. That turns a vague complaint into a specific, reproducible issue you can fix without owning the hardware it happens on.

How to Fix Unreal Camera FOV Feeling Wrong From Vertical vs Horizontal Interpretation

Q: What causes an Unreal camera FOV feeling wrong from vertical vs horizontal interpretation?

Unreal's Field of View is the horizontal angle, while many engines specify vertical FOV, so reusing a number across engines yields a different effective zoom and feel.

Quick answer: Decide which axis your target FOV refers to and convert using the aspect ratio, since horizontal and vertical FOV differ by an arctangent of the aspect.

If your Unreal view feels zoomed differently than your reference engine at the same FOV number, the axis differs. Converting the angle fixes it. Here is how.

How to fix it

1. Know Unreal uses horizontal FOV

The CameraComponent's FieldOfView is the horizontal angle. A 90 in Unreal is wider than a 90 vertical FOV in an engine that measures vertically.

2. Convert between axes

Convert with Hfov = 2 * atan(tan(Vfov/2) * aspect) (and the inverse) so the same scene framing carries over between engines that use different axes.

3. Recompute for ultrawide

If you support multiple aspect ratios, hold the vertical FOV constant and let horizontal expand, so ultrawide players see more rather than a stretched image.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every Unreal Engine error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.

Most of the time the fix is small. Seeing the failure clearly is the part that actually costs you.