Occasional object teleportation (game speed up) on Macbook Pro M1 Max

[kirilllysenko]

Bug description:

When playing some Defold sample projects objects are being teleported. It looks like occasionally 1 in-game second passes during 1 frame. Better to see attached videos to understand

Steps to reproduce the behavior:

1. Create new project in Defold from one of the projects below
   1.1. From template "Platformer game"
   1.2. From sample "Lightning VFX"
   1.3. From sample "Pixel line platformer"
2. Run game using Project -> Build
3. Play game for some time and see bug

Expected behavior:
Playing game without occasional object teleportation (game speed-up)

Defold version:

• Version 1.8.0
• Channel: editor-alpha
• Build time: 2024-05-1515:14:00.109381
• Defold CPU arch: Apple Silicon

Platforms:

• Platforms: MacOS
• OS: MacOS Sonoma 14.4.1
• Device: Macbook Pro M1 Max

Minimal repro case project:
https://github.com/defold/template-platformer/archive/main.zip
https://github.com/defold/sample-pixel-line-platformer/archive/refs/heads/main.zip
https://github.com/FlexYourBrain/sample_LightningVFX/archive/master.zip

Videos of bug:
https://github.com/defold/defold/assets/47689344/0d74ef64-6c11-4cb0-9dc9-456ac9b3d01b
https://github.com/defold/defold/assets/47689344/9cbb5b44-e217-418d-ac5d-4aa90209e3eb
https://github.com/defold/defold/assets/47689344/64bce953-d2fa-4b3b-904d-9341292af801

Additional Info:
On some sample projects there is no such problem

[gianmichelemariani]

I'm experiencing the same issue. My specs are slightly different:

• Platform: MacOS
• OS: MacOS Ventura 13.6.6
• Device: Macbook Pro 16 M1Pro
• This happens both with battery and connected to power brick.

[Jhonnyg]

Setting the "update frequency" to zero seems to remove the warping in both projects, we'll need to do some more investigation as to why the frame delta occasionally spikes.