Strange localisation problem I have encountered
Way I've found to reproduce it (might not be the most efficient way but hey);

• Take an operator variable of "Raw Item Equals"
• Flip it in the Logic Programmer
• Apply like so: (Previously flipped "Raw item equals" + Operator Variable of "List contains predicate")

Placing it in an item exporter should return this error

• MC Ver • 1.10.2
• Latest Integrated Dynamics and Tunnels