This is the currently expected behaviour because even though some parts of the zabbix repository code have been modified to start support of MOS 9.0, all of the modifications have not been committed nor submitted for review yet
We are currently in the process of final testing for the missing parts of the code for full MOS 9.0 support (as well as keeping MOS 7.0 and 8.0 backward support)
This is the currently expected behaviour because even though some parts of the zabbix repository code have been modified to start support of MOS 9.0, all of the modifications have not been committed nor submitted for review yet
We are currently in the process of final testing for the missing parts of the code for full MOS 9.0 support (as well as keeping MOS 7.0 and 8.0 backward support)