Thank you very much for the details!
The configuration is more-less okay, I have discovered a potential bug with fetching the ACF checkbox values. The actual values were not correct, when the field was numeric in some of the cases.
I have made a correction to the code to prevent that from happening. I have also changed the “Speaker” filter operator to “EQUALS”, because it has numerical values.
From what I can see it looks okay to me now, can you please confirm? If so, I will make sure to include this fix in the upcoming release.