UE4 Flex particle limited. ask?

I have a problem to simulate water, and wanted to know if I can help with the following parameter, particules Max has a limit on unreal engine 4.15- Max amount of 15,000 particles, is the limit, and I need put 1.000000 million particles, i want to report wrong numbers greater than 15,000 flex nvidia not longer recognizes plugin unreal. someone else happened to him? nvidia in the demo flex, come 32,000 which is a lie because I have calculated the volume of a liquid that comes by default and is not correct, the same number is 32,000 15,000 15,000 above is the limit of particles

im also looking for an answer. For some reason i cant create a GPU Type particle using “Spawn Flex Fluid”