NOTE: This problem is fixed in update build 6000 of ARCHICAD 18.Attention! Due to another bug it can happen that ARCHICAD Education License dialogue gets stuck, the user cannot leave it and it will not disappear either. In this case the user has to shut down ARCHICAD for example from Activity Monitor, then restart it manually. Now ARCHICAD will run with no problem with the renewed license file. This phenomenon is platform independent while the original problem occurs only on Macintosh platform. This problem is also fixed in update build 6000 of ARCHICAD 18.