Steps to reproduce:

Create any map element

Use any float item into the label with fmtnum macro function usage to limit digits after the comma, as it had been described into documentation

https://www.zabbix.com/documentation/current/en/manual/config/triggers/expression#example-17

Example

Load: {{?last(/Zabbix server/system.cpu.load[all,avg5])}.fmtnum(1)} 

Result - Expression Macro working, trigger function not

Expected

Expression macro is allowed to use in map element labels, macro functions should work as well

Similar behavior on 6.0.0-6.0.5 versions