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I am trying to create a function that simply returns some hardcoded values so that I can use them in other functions within the function library. However, I'm getting the error:

GetGridMeasurements.HexHeight is not blueprint visible (BlueprintReadOnly or BlueprintReadWrite). Please fix mark up or cease accessing as this will be made an error in a future release.

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I'm pretty new to Unreal (currently using 5.1) and don't really understand what this means. I created everything through the UI and haven't touched any C++. I realize I could just return the values without making variables but I am still wondering why this specifically doesn't work.

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The issue ended up being caused by having a local variable wired to an output parameter of the same name. Changing the output parameter name resolved the issue.

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  • \$\begingroup\$ As an aside, I've found that it's probably better to use a struct for these values anyway but this was my initial idea for dealing with a lack of static class variables in Unreal. \$\endgroup\$
    – Matt
    May 10 at 7:06

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