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Users are faced with an "Error Evaluating UI Expression" pink box error when attempting to access any interface that utilizes the webservicequery() function. The following exception is printed in the application server log:
com.appiancorp.core.expr.exceptions.ExpressionRuntimeException$AppianExceptionProvider: Expression evaluation error in rule '<RULE_NAME>' (called by rules '<RULE_NAME>' > '<RULE_NAME>' > '<RULE_NAME>') at function fn!webservicequery [line 2]: The operation [...] is not present in the binding [...]. Available operations in that binding: [...] (APNX-1-4198-000)