Dragon Quest XI for Switch delay due UE4, game based on PS4 version of game, why was announced for Switch so early

[Hynad]

Nuvendil said:

Hynad said:

Do you know when the Switch got a working version of UE4? 

Nintendo said from the get go that the Switch was going to be compatible with UE4. But then, support for it came much later. It isn't unreasonable to believe Square-Enix thought the engine was going to be supported much earlier than it was.

Preliminary support, used to port Snake Pass, was in place with 4.15 in February 2017.  4.16 released in May brought full support. https://www.unrealengine.com/en-US/blog/launch-your-game-on-the-nintendo-switch-with-unreal-engine-4-16

Epic has also been responsive to devs needing assistance and the support has been refined since.

Indeed, and Square-Enix did mention that they have been in touch with both Epic and Nintendo to help sort their issues.