Before running msi install task, check if your mirror is up to date. In ADNM console under View menu, Show AMS Mirror status, you should see list of versions that are mirrored.
Send me file mirror.log from folder Management Tools\Mirror\Logs, I’ll check it.
The log shows that msi creation finished successfuly.
Tryt to create the msi install task again and let the path as default, msi file should be created in “C:\Program Files\Alwil Software\Management Tools\Msi” folder