Problems generating layers with quickosm in qgis

I want to create a railway,rail layer in qgis by importing it from quickosm, for the region of Germany. I am only interested in values like number of tracks, operator or voltage.

If I create the layer with showquery and only create the values that I am interested in, there are columns that come out null, like the operator.

I only get the correct data if I generate a quickquery with all the default data columns, but the problem with doing it this way is that due to the high amount of data, then the program gives me problems when I want to delete the columns of values that I am not interested in.

The only solution I could think of was to do it with showquery so that it would generate only what I wanted, but it is not possible because the data is defective.

Could someone help me with this problem? Thank you very much in advance.

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