Filter of Checkbox Field Not Working in Reports

Filter of Checkbox Field Not Working in Reports

I have a Form called Fuel Order. On this form I have a checkbox field called "Invoiced" with two options, "Fuel" and "Freight". When I try to generate a Calendar Report showing only selected records, using this logic:
  • "Invoiced" does not contain "Freight"
This does NOT work. It shows all records. I think it is a bug.

https://monosnap.com/file/Mq5z8WYfxPbqfLPQhrlc9u6g2XiCiG

Any help would be greatly appreciated.