Factory construction after max factories reached
Rather strange: in the attached save, the Capella system (left edge) has maxed industry, but the industry slider allows further factory construction. The total factory amount is still capped and the extra production appears to go into the planetary reserve as expected at end of turn, so it's just the slider display that's incorrect. And it's only on this one planet, which I conquered from the Klackons some 20 turns prior.