Front-End issues on the top of Bex queries

Hi Expert,

I have few Bex queries which are using some caracteristic's restrictions with the specifc operator  " <> "

When i try to build a webi query on that kind of bex quey, i have always an error.

java.lang.unsupportedOperationsException (Wis 0000)

This the same issue when using analysis for MS Office.

If i change the operator or delete the restriction it works fine with all front-end tools.

.

BW version 7.0.0.0sp0

Bex query designer V7.x (based on 7.30)  sp0 revison 681

BI4.1 sp2 .

Any ideas.

Regards

Gil