is the semimajor axis correct in this example or missing the earth radius?

I looked at this example and it lists a the altitude for Gallileo and uses it for the semimajor axis. I think it is missing the 6378 km or is there a setting which corrects it automatically in the software? https://www.mathworks.com/help/satcom/ug/modeling-constellation-using-ephemeris-data.html

https://galileognss.eu/ephemeris-keplerian-parameters/

If I put in a semimajor axis value of 6378138 m the simulation says it's valid, but 6378136 m says it crashes...

If the matlab example listed above has a error, it's quite confusing and please correct it.

Thank you