Resporting services "Select All" checkbox selected will crash the report
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I have a report deployed in a sharepoint dashboard library with a multivalued parameter called departments.
As many nultivalued parameters, it'a available and dafault values come from a dataset queried from the main table  (excluding the null values).
This parameter had 465 options until yesterday and it worked perfectly. 
Today, the report, when I open it in the link, it shows the loading icon for a few secconds and then it dissapears.

COMMENTS: 
-When Select All is selected, it will have this error
-When all are selected but Select All is not, the report shows the results

I have no idea why this happends or how to sole it. I´d appreciate if you could help me, thank you

Thank you.