Filter <= does not work right.
I recorded a short screen-sharing video to explain the resolution.
Let me know should you have any further questions and do not hesitate to reach out to us for help anytime.
This is weird, and it should work regardless.
I think you are using the wrong filter type for the comparison, which happens to most of us, can you check if the filter that you are using for 8 is a numeric filter and not a time filter?