I found a difficulty with the custom intervals not carrying out the biweekly queries, a precise day determined until the first month on the 15th, every hour.
But even following the official documentation it was not possible, it a query and does not bring any more value.
Update interval: 0
Custom intervals (Scheduling) md01-15h00-23
Other examples that didn't work:
Some of the examples collected only once, and did not collect more.
It doesn't show an error message, it doesn't collect just that.