ZCS 6.0.2 When Users Runs Filter Manually, it Fails

[jurness]

Hi,
When a user runs a filter manually on mail in the inbox from Preferences>Filters>[filtername]>right-click "Run filter", they get the following error:

A network service error has occurred.
method: ApplyFilterRulesRequest
msg: system failure: Unable to evaluate script
code: service.FAILURE
detail: soap:Receiver
trace: btpool0-10428://zimbra.domain.com/service/soap/ApplyFilterRulesRequest:1257880409531:9963776d9eef 4442
request:

user@zimbra.domain.com0_06f57fa6588805e967a294e0d378126aae31a61d_69643d3 3363a34363764393830322d363435302d343764382d6163393 62d3231343236393430636532623b6578703d31333a3132353 83034383536373934373b747970653d363a7a696d6272613bi n:"inbox"

Release 6.0.2_GA_1912.RHEL5_20091020173119 RHEL5 NETWORK edition.

[leocor]

Got the same bug, but just when filtering by date:

method: ApplyFilterRulesRequest
msg: system failure: Unable to evaluate script
code: service.FAILURE
detail: soap:Receiver
trace: btpool0-259://zimbra/service/soap/ApplyFilterRulesRequest:1257948148227:f45e4fd324c8 a473
request:

corato@vdp.it0_a13a7c8777c51a7002a39e24a15ee6df20d03752_69643d3 3363a61646563353632632d383037322d343731362d3934393 22d3164653937656232356332663b6578703d31333a3132353 83131393834343037383b747970653d363a7a696d6272613bi n:"inbox"

It happens just for some folders! For instance: Inbox !!!