Four pipe induction fan coil units issues

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Hi all, I am having two problems with four pipe induction FCUs. The first one is with dangling exhaust nodes, it doesn't seem I can get rid of it. I used a script to apply induction FCUs to the select zones with minimal tweaking in the model afterwards. There was a posting on this June with OS version 1.7, but doesn't look like it's solved. I can export the E+ idf file out and fix it in idf, but I won't be able to import this back to openstudio to meet the reporting requirements.

Second, these four pipe FCUs (>40 of them in the model), when one fails to have design capacity meets load, EnergyPlus stops and produces error for this particular FCU. In my case, I have 10 FCUs that were having troubles, I had to run E+ 10 times to go thru all the FCUs. Is there a fast way to fix it?

Thanks!