Hi Neman, there's no such limit. We have tested with far larger maps than that. All I can think of is that amongst the topicrefs below the initial 165, there's some kind of issue in the DITA or possibly in the way it's being parsed. Could you file a support ticket to follow this up, including the actual publication export if possible? (That's the best way to get official responses and help on things like this.)

Hi Neman, there's no such limit. We have tested with far larger maps than that. All I can think of is that amongst the topicrefs below the initial 165, there's some kind of issue in the DITA or possibly in the way it's being parsed. Could you file a support ticket to follow this up, including the actual publication export if possible? (That's the best way to get official responses and help on things like this.)

Thanks Joe. It was a surprise to us, especially when we cut the map in two (no removal of topicrefs) and it rendered fine.

Ticket 00524826 submitted, and looking forward to a resolution from the great support team!