In my game, a boat is swinging in sync with the waves of the ocean. But when I launch the game the boat is not swinging. What is wrong? Thank you.

A bit lacking in details here, I'm guessing you are talking about the GameSDK Forest Demo level? If so did you change anything? Try clicking on the "Export To Engine" in the file menu of the engine before you play it in the Game itself.

No I am not talking about the GameSDK Forest Demo level. I created a simple level in CE5.3. Then I added physics to a boat. They work fine when I press Ctl G. Then I click Export to Engine but when I launch the game the physics of the boat don’t work. I didn’t try to launch my level in CE5.4 yet.

What entity type did you choose? BasicEntity? RigidBody?

Did you drop something on it to see if it was an activation issue? Ive had that happen before. Also can you try other entities in other places with different physics? When troubleshooting its generally wise to seek as many samples as possible to work out what is causing the issue.