I spent a few hours this morning fighting with an internal error code 5 BD Heap error every time I tried to copy a section of my block diagram and save it, and finally figured out the sole source of my problem:
When copying sections of the block diagram, never copy a structure that contains a feedback node whose initializer lies outside that structure, unless you find the initializer and select it too.
I think this also counts as an "Insane Object" error. You can also fix it by deleting the feedback node and replacing it but if I tried to do this after a save attempt LabVIEW fatally crashed; so I'd suggest you do it as soon as you have copied the code, before you try to save anything.
If anybody has other known causes for this error, please post them for the benefit of others here.
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Ryan R.
R&D
