Round columns and floor when importing the gbxml exported from Revit to Ecotect

[mhur]

When importing the gbxml exported from Revit to Ecotect,

1) my round columns are not fully imported. The columns are also read as many pieces of walls. There is no way to import the round columns correctly in Ecotect?

2) my floors are also read as many divided pieces. What's the problem?

Thanks a lot for your help!