Currently Picard uses the MB default query limit of 25 for all web service requests. That means it considers at most 25 results. As Picard applies it's own filtering, which can be adjusted e.g. by "preferred releases" settings) this means the selection is always limited to 25 items.

It's quite possible the best match after applying the weights (e.g. for release types) is after the first 25 results. Consider increasing the query limit by default, and maybe make it configurable.