v2018.2-ffbs does not have the altitude field
Axel complained that v2018.2-ffbs does not have an altitude field in config mode. Obviously previous versions did have this.
@chrissi will try to build a gluon image that contains this field.
Gluon Config states: https://gluon.readthedocs.io/en/v2018.2.x/user/site.html?highlight=altitude