After upgrading from 1.6.8 I can not update some trigges.

Sample Trigger:

{DESWT009:Port 1 in bps.min(#2)}

>0.75*

{DESWT009:Port 1 Speed.max(#2)}

If I try to save I get this red message
An item key must be used in trigger expression .

Some other simple triggers I was able to update.