String - Revit Parameter

Hoping some one can enlighten me on this. Hoping the description makes sense, if not I will expand on it more.

On and off at various instance where I am referencing a Revit Family Parameter I will receive a error message. The fix has always been to copy the string containing the parameter name, paste it re connect the nodes, delete the old string and move on.

It will run for a while and then misc error out again, is this normal?

Are you running your graph with “Automatic” run enabled? I’ve been experiencing something similar with the daily builds after 0.81 and it seems to stop when I set the run mode to “Manual”

Whenever I leave to graph on automatic and connect or disconnect a node multiple times, the output seems to get lost and the node outputs only null values.