Crash on running game with additional 3d cube object "Failed to create CanvasManagerChild"

The editor and game crash when I try to launch the game after placing a new 3D object. I only have 4 objects, crashes on trying to create a 5th one.

Error report information

Type: unhandled rejection

Reason: Error: Failed to create CanvasManagerChild Ckn@https://editor.construct.net/r476-3/main.js:29:862449 Mkn@https://editor.construct.net/r476-3/main.js:29:862323 Ekn@https://editor.construct.net/r476-3/main.js:29:864631 Ckn/<@https://editor.construct.net/r476-3/main.js:29:863763

Stack: Ckn@https://editor.construct.net/r476-3/main.js:29:862449 Mkn@https://editor.construct.net/r476-3/main.js:29:862323 Ekn@https://editor.construct.net/r476-3/main.js:29:864631 Ckn/<@https://editor.construct.net/r476-3/main.js:29:863763

Construct version: r476.3

URL: editor.construct.net

Date: Sat Apr 04 2026 22:32:20 GMT-0700 (Pacific Daylight Time)

Uptime: 18 s

Platform information

Product: Construct 3 r476.3 (stable)

Browser: Firefox 148.0

Browser engine: Gecko

Context: browser

Operating system: Windows 10

Device type: desktop

Device pixel ratio: 1

Logical CPU cores: 16

Approx. device memory: (unavailable)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0

Language setting: en-US

WebGPU information

Renderer: WebGPU

Supports GPU profiling: yes

Major performance caveat: no

Maximum texture size: 16384

Adapter vendor: (unavailable)

Adapter architecture: (unavailable)

Adapter device: (unavailable)

Adapter description: (unavailable)

Adapter type: (unavailable)

Adapter backend: (unavailable)

Adapter features:

I'm afraid it's not possible to help from just this information. In general we need people to file an issue following all the guidelines, otherwise we cannot investigate. Also try disabling any browser extensions you have installed, as buggy extensions are a frequent cause of issues in Construct - and in this case I think that's likely to be the cause, as there is nothing named CanvasManagerChild in Construct's code, so it seems likely it's coming from outside of Construct.