I have a project that occasionally throws an overflow error wile I am testing it, but it doesn't make any sense. Sometimes it works, then it will start throwing an error, even though the value hasn't been altered. The value is a constant, which hasn't changed, and is well within the variable type's range. example:

Once i get the error, I can't run the project, and often it continues even after a restart.

If I change the value (e.g. to a '4'), it works again. But then the error eventually comes back later, and if I change it back to the previous value, then it works again.

Is there possibly something corrupt in my project?

How are you using the variable in the project?

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Graham Mayor - MS MVP (Word) (2002-2019)
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That variable is only used once, added as a value to a dictionary object.

The dictionary is used to set data into the document, but if there was an issue, I'd expect it to be a runtime error when that value is used if it's not the correct type (i.e. an object used where a string is expected), and even that is not the case.

The dictionary values are also written to the document variables collection (which is the only place that this specific constant is written), and a single is a valid type to write to a document variable.