I am using observer on a Fluid Drain's "Failed" property.
When it is failed, I open the "Fail_pipe" and collect incoming material in a tank (and closing the P-pipe).
When it is not failed, I close the "Fail_pipe" and open the P-pipe. This is what gives me access violation on row 39:
Is there a known cause? (I can not post the model due to NDA.)
Thanks in advance.
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