Please help about load sublevel which has landscape

i am doing on a project that need to load the same sublevel many times to build an infinite world,i used the function(VictoryLoadLevelInstance ) in VictoryPlugin made by Rama,it is ok to load sublevel many times,but when there is landscape in the sublevel to load,it warings:
Landscape_0 Landscape Landscape_0 of /Game/InfiniteAffordableLandscapes/Maps/UEDPIE_0_Test2_VictoryInstance_1000 has the same guid as Landscape_0 of /Game/InfiniteAffordableLandscapes/Maps/UEDPIE_0_Test2_VictoryInstance_1001. /Game/InfiniteAffordableLandscapes/Maps/UEDPIE_0_Test2_VictoryInstance_1001.Landscape_0 has had its guid automatically changed, please save /Game/InfiniteAffordableLandscapes/Maps/UEDPIE_0_Test2_VictoryInstance_1001!
and i cant see my landscape,could some one help me?Thanks a lot