It had 52+0 issues but couldn't finish a story. A lot of the plotlines didn't even have its end and the whole timeline got rebooted again with Tim went back to explode Brother Eye, which made most of the issues meaningless. We didn't even know what really happened to current FE Brother storyline, we didn't even get a clear explanation of why did Brother Eye go evil. Now in Batman Beyond the future Brother Eye got beaten so easily, how did it rule the world and took down so many might heroes? It was really dumb.