Why is `runtime.loadingProgress` always 1?

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- max fang
- - Joined 26 Mar, 2024
  - 5 topics • 12 posts
- 1
- 4 Jan, 2026
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I'm using Chrome to preview and simulate 3G traffic, but line 12 always shows a result of 1. Am I using it incorrectly?

C3 version 458.2.
- Ashley Construct Team Founder
- Moderator
- - Joined 21 May, 2007
  - 671 topics • 31,074 posts
- 2
- 5 Jan, 2026
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It will always be 1 if your project doesn't contain any images. It also only updates when the IRuntime "loadingprogress" event fires.
- max fang
- - Joined 26 Mar, 2024
  - 5 topics • 12 posts
- 2
- 5 Jan, 2026
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Even without any images, it should still get 0. I created a new test project with no images and got 0. I recreate the project and copy the contents of the old one over. Then everything worked fine. :(
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- Ashley Construct Team Founder
- Moderator
- - Joined 21 May, 2007
  - 671 topics • 31,074 posts
- 1
- 5 Jan, 2026
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Well, 0 means 0% loaded so means nothing is loaded and the project is not ready to run, and 1 means 100% loaded and so the project is ready to run. If there are no images to be loaded, I think representing that as 100% loaded is more appropriate. Otherwise if you write code assuming that if the loading progress is less than 100% then the user still needs to wait for loading to finish, then in that case the user will be waiting forever. FWIW this came up in this issue.