See this fiddle
In the provided example, there are multiple columns that have validation functions configured. The validations also don’t occur in the correct column order. In the provided example, click enter in the First Name and first row. The validation message for the Product column shows up when it should be the First Name column validation.
The validation tooltips sometimes don’t position themselves correctly relative to their inputs. In the provided example, select a Product firs and than enter a First Name. The Last Name column tooltip shows up on the First Name input.