It’s also confusing when I try to get my players to send screenshot of their error (in red). Then they always miss the real error and just give me a picture of these worthless prints.
Suggestion: I think it should be removed because it contributes to nothing but confusing spam.
We probably need to improve this error message, but it’s telling you that your attempt to preload doesn’t work. It should help you by forcing you to change your code accordingly.
If these ids are mesh ids, you might want to refer to ContentProvider:PreloadAsync and Preload update and update your code to use PreloadAsync with instances as an input instead of strings.