Since upgrading to 1.8.3 I have a number of failed triggers. Most of these triggers use either the logseverity, max or last function.

5375:20100822:175131.180 Evaluation failed for function: logseverity
5375:20100822:175131.180 Expression [(

{84195}

=2&

{84196}

>0)&

{84197}

>0] cannot be evaluated: Evaluation failed for function: logseverity
5375:20100822:175131.224 Evaluation failed for function: logseverity
5375:20100822:175131.224 Expression [(

{78559}

=2&

{78560}

=1)&

{78561}

#1] cannot be evaluated: Evaluation failed for function: logseverity
5407:20100822:175157.752 Evaluation failed for function: max
5407:20100822:175157.753 Expression [

{84057}

>(

{84058}

+1)] cannot be evaluated: Evaluation failed for function: max
5375:20100822:175201.154 Evaluation failed for function: logseverity
5375:20100822:175201.154 Expression [(

{84131}

=4&

{84132}

>0)&

{84133}

>0] cannot be evaluated: Evaluation failed for function: logseverity

This is happening on two different systems (our development and production environment) and two completely different sets of triggers.