Element desk randomly changes to partition 0

I have an element desk that upon loading a show file will randomly (as far as I can tell) change over to partition zero and have to go back in and manually change it. In the partition settings it shows as disabled and I have to enable partitions and pick 901 to enable DMX output, is there any way to lock the setting so it can not be over ridden by a show file. the desk is up to date and works fine in every other way.

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