Function in Report changing spontaneously to User defined Function

[SonomaCharles]

This is a little hard to describe. I have an Integer field in a table called Lunch_Count. It comes over 1:1 in the query on which a report is based. In the header of the report. I define a field in the header of the report as

Function
Lunch_Count
Accumulation
Specified Route

#1, I get that weird bug where the display goes black – which is startling but does not seem to hurt anything – but the fields Data properties then change spontaneously to

User defined Function

[AccumulationLunch_CountSpecified Route]

Again, it does not seem to hurt anything but it confuses me as I try to actually create a user defined function. (See separate question.) Can anyone enlighten me?

[RobertG]

Got that very often in Report Builder. But function will work as expected.

This “user defined function” would also help me to understand how to create functions.