PDF matching rule stopped working

Hi,
I have a rule which has been working flawlessly for years on my MacBook Pro with 10.13.6 and the latest Hazel 4.4.4.
By going into preview mode I could see that the “Author“ field which has been used to match a specific credit card statement stopped working all of a sudden.
What's strange is that the PDF still includes the same Author, and even by once again copying the string from the PDF file not being matched, the rule still wouldn't recognize the correct Author like it always did.
I am at a loss. I can do as much debugging as needed, but the many tests I have done with that PDF and the preview mode are not encouraging.
Any hint?
Thanks,
Luca
I have a rule which has been working flawlessly for years on my MacBook Pro with 10.13.6 and the latest Hazel 4.4.4.
By going into preview mode I could see that the “Author“ field which has been used to match a specific credit card statement stopped working all of a sudden.
What's strange is that the PDF still includes the same Author, and even by once again copying the string from the PDF file not being matched, the rule still wouldn't recognize the correct Author like it always did.
I am at a loss. I can do as much debugging as needed, but the many tests I have done with that PDF and the preview mode are not encouraging.
Any hint?
Thanks,
Luca