Document with hundreds of dates give spinning beachball

Normally the parameter - If "Contents contain match.. Date" works fine with all my documents.

I normally check that it is finding the right date by using "Preview rule" and clicking on the green tick next to the parammeter. the date appears at the bottom of the pop-up box.

With one type of pdf document in particular "Tax Report", the above parameter will seemingly find a date, but I don't know which one (it has the green tick), but clicking on the green tick produces the spinning beachball, requiring me to force quit Hazel.

It's not just the date variable which is a problem. Other variables such as If "Contents contain match.. Page Number 123" will also prodiuce the spinning beachball if I click on the green tick.

There is no problem with the rule which works fine with every other pdf document. Trying other rules on the same document produces the same result, so it's definitely a problem with the document and not the rule.

The pdf document in question is about 70 pages long and there are up to 30 dates per page. The pdf is in Landscape mode. Every line of the document seems to be OCR readable. Could this be due to the size of the doucment, or because it is in Landscape mode, or some other reason?

Update: If I shorten the document to just the first 5 pages, there is no problem.

It probably is related to the document size. How well does it work if you open it in Preview and try searching around?

Opening the file with the Preview App works normally. Every page is there and I can highlight any text on any page and copy it elsewhere meaning that it 100% OCR readable.

As you say, it must be that the document size is too large for Hazel. The size is actually 71 pages and the total size is 506KB.

There's mo need to waste more time on this. As I mentioned, Hazel finds a date, but I couldn't discover which one due to the green tick producing a spinning ball.

It was simple enough to find a work around. I simply renamed the file with the "Date" and checked the date was the correct one that way, i.e. by looking at the file name. I just dont click on the green tick and everything works.