Columns not working on android 9

[Hometown]

Im am not sure if it is becouse of android 9,but the columns in portrait mode don't work. Only shows 1 column even when is selected 2,3,4 or 5.

In landscape it works tough.

Not sure if that could be a problem with the Huawei mate 20 x, or the 9 version of the operative system. 

Best!!