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Error 1498 trying to load class from file

Me again struggling with LVOOP, Chapter 624.  I'm trying to implement a HAL using Ye Olde Factory Pattern.  When I attempt the "Get LV Class Default Value" I get the 1498 error on the second call - the first succeeds.  Now, searching around I see a (really badly written) explanation at

 

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000004AoESAU&l=en-US

 

I see a bunch of similar forum posts with solutions, BUT - they all pertain to builds, libraries, etc.  I'm nowhere near trying to build an executable - just trying to compile 1 little vi!  My project that contains all the classes I'm using mass compiles just fine.  BTW I conditional disabled the 2nd call, and the last call also throws the 1498 error.  So LV likes my first class but hates the other 2 - why oh why?

 

Thanks for any light y'all might shed, stay healthy, paul

 

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Anybody? Help!

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