Actually, the DMA Component Datasheet states correctly that DMA_END_CHAIN_TD (which = 0xFF and = DMA_DISABLE_TD) must be used to end the chain, but in the examples and in the DMA Wizard the IMHO incorrect DMA_INVALID_TD is used.
Update: I was confused again by the docs. Turned out that DMA_END_CHAIN_TD = DMA_INVALID_TD = 0xFF which is WRONG.
The correct is only DMA_DISABLE_TD as I pointed out in my first post but it is not documented anywhere, it is only used in the DMA appnotes. The DMA Wizard is still incorrect.