1、why 9.5 app installed into device instead of 9.3.4 ?
---Please check if you have ever release 9.5 to that device ?Download priority is higher version app as priority
2、why 9.5 app have been installed but after release 9.3.4 ,device cannot install 9.3.4?
---The logic of installing an application is that a lower version cannot be installed on an existing device with a higher version app already
MDM cannot downgrade app version
Please uninstall the high version app on mdm platform and reboot device firstly.