When I importing custom units, I reversed the name and sign.
Then I referenced it in the project’s input channel, and since I was using the import-export, I didn’t find this error.
I didn’t find this error until the project was downloaded and run.
Finally, I found the wrong unit in the scheme, I hope to fix the error
I swapped the name and sign order, re-downloaded, could not correct this error.
I even deleted the input channels and units, completely re-created, the error is still there and cannot be modified.