Search will probably never work again, as spotweb development is next to dead.
Searches in spotweb rely on a real-time query to rageid. As rageid is dead, switching to other sources is needed. There are various sources that still can resolve the rageid to a series name, and sonarr had implemented searching on other parameters, but without alterations to the spotweb search engine, they won’t work. (Probably, haven’t tested the new search parameters yet as they only becane available yesterday in main).