Interesting. I tried the .NET 4.6.2 version of the 2024.0 and 2023.0 versions of the dll. LabVIEW is refusing to read the contents of the dll when higher than 2023.0 when trying to configure a .NET control or constant. Choosing a property or method does not appear to have any issues using the drop-down of the property node with a wired up .NET reference. So it would probably be best to keep the 2023.0 version for now just to be on the safe side. Just close the project, replace the dll, load the project back up, ignore all of the warnings saying the .NET methods were loaded from a different location, and save all.
By default, I set the read timeout to 1 second. Is that long enough for your command to execute and respond? I don't think there is any indication given if the read times out.
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