I keep receiving this error and need a substitute method to create the mold. Is there an alternative method to create the mold or way to continue this feature?
Mold tools aren't the greatest. To continue with this method, clear all selections and manually select your shut offs.
If they still don't work, you can reset all patch types to no fill, this will split the surfaces in to core and cavity, then you can fill shut offs manually and put them in to correct surface folders.
Personally, I like to create my molds using manual surfacing tools.
...the shut-off feature seems to work... but you need to create a simple parting plane as Kyle Mitchell suggest.. do it manually.. same plane or reveal you have the Parting Line1.
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