Upgrade from 2.9.51 to 3.11 Scrip does not work, Help

RouterOS Scripting
1

I have such script

:global IP "192.168.23.45" ;
/ping $IP count=3 ;
:global tmpmac [/ip arp get [/ip arp find address=$IP ] mac-address] ;
:log error $tmpmac ;
:if ([/ip arp get [/ip arp find mac-address=$tmpmac] interface] = bridge1) do [:global tmpbr [/interface bridge host get [/interface bridge host find mac-address=$tmpmac] on-interface] ;
:log error $tmpbr; ] else=[:global other [/ip arp get [/ip arp find mac-address=$tmpmac] interface ];
:log error $other ;

this script was working very well untill I had upgrated to 3.11 ,
Why does not this script work?
Who can help me?


Thanks

2

Try 3.12. Some upgrades were made to the scripting to make some broken syntax in 3.11 work again in 3.12.