Loop does not work properly

[XinyeYang]

I just want to create a GIF that plays once, but this setting doesn't work

MacOS 14.5
M1 Pro

[XinyeYang]

V2.23.0

[sindresorhus]

Where are you testing the GIF? macOS Quick Look does not correctly respect the count. You must drag the GIF into a browser to properly test it.

[XinyeYang]

I put it in Microsoft PowerPoint

[sindresorhus]

Then it's more likely a problem with PowerPoint.