Please notice that the OK in your expression editor is just a syntax validation. It does not indicate any thing about the logic in your expression, and reasonably QlikView can not determine if an expression is inline with your intentions.
For troubleshooting you need to minimize your scenario. It is simply not feasible to trouble shoot a expression with this many parameters, and also you need to break the logic down to a level where you can validate that the different components return the values you expect.
If your problem is related to the expression below, and you have identified that the bold part is the problem, you should provide a sample focusing only on the troubled part.
IF((RANGESUM(BRO_ORC+AGE_ORC+GRO_ORC)=0 AND ORC_COM> 0 AND CLA_CODE='PP' AND(COM_PRE+SR+TC)>RANGE1 AND (COM_PRE+SR+TC)<RANGE2),(ME_COM),0)
In your chart add a new expression with the troubled part. Is the result in this column as you expect now?
(COM_PRE+SR+TC)>RANGE1 AND (COM_PRE+SR+TC)<RANGE2
If the result is not as expected, continue breaking the expression down in parts, to see where the problem comes from. Does the below to expressions return the result you expect?
(COM_PRE+SR+TC)>RANGE1
(COM_PRE+SR+TC)<RANGE2
Keep on breaking up the trouble expression until you find the logical problem, and then put everything back together piece by piece.
I think I have already recommended in a previous case that you need to provide a very precise example and scenario if you expect quick help. Your questions also need to have a proper subject so that community members can see what you need help with, the subject "help" is not very likely to attract the right person to read your question.
