Good morning everybody,

I noticed that periodically, code (specifically macro code in
Excel) that was working flawlessly in the past suddenly starts to error out.
For example, in making a line-graph, macro code will add data series to a
chart and assign values but suddenly it draws an error when it hits code to
name the data series. But if I move that line of code above the line in front
of it and rerun the procedure that line works fine but then it errors out on
the data series a couple lines down so I don't think the problem is the code.
This is some example code.

Charts.Add
ActiveChart.ChartType = xlLine
ActiveChart.SetSourceData Source:=Sheets("TRAD FEES EMPLOYEE
STATS").Range( _
"B2"), PlotBy:=xlRows
ActiveChart.SeriesCollection.NewSeries
ActiveChart.SeriesCollection.NewSeries
ActiveChart.SeriesCollection.NewSeries
ActiveChart.SeriesCollection.NewSeries
ActiveChart.SeriesCollection.NewSeries

ActiveChart.SeriesCollection(1).XValues = _
"={""JAN"","" FEB"","" MAR"","" APR"","" MAY"","" JUN"","" JUL"",""
AUG"","" SEP"","" OCT"","" NOV"","" DEC""}"
ActiveChart.SeriesCollection(3).Name = "=""Riverside"""
ActiveChart.SeriesCollection(4).Values = _
"='TRAD EXPENSES_EMPLOYEE_STATS'!R3C39:R3C50"
ActiveChart.SeriesCollection(2).Name = "=""Corona"""
ActiveChart.SeriesCollection(1).Values = "='TRAD
EXPENSES_EMPLOYEE_STATS'!R3C2:R3C13"
ActiveChart.SeriesCollection(1).Name = "=""Anaheim Hills"""
ActiveChart.SeriesCollection(2).XValues = _
"={""JAN"","" FEB"","" MAR"","" APR"","" MAY"","" JUN"","" JUL"",""
AUG"","" SEP"","" OCT"","" NOV"","" DEC""}"
ActiveChart.SeriesCollection(4).Name = "=""Moreno Valley"""
ActiveChart.SeriesCollection(2).Values = _
"='TRAD EXPENSES_EMPLOYEE_STATS'!R3C51:R3C62"
ActiveChart.SeriesCollection(5).Name = "=""Yorba Linda"""

ActiveChart.SeriesCollection(3).Values = _
"='TRAD EXPENSES_EMPLOYEE_STATS'!R3C27:R3C38"

These data series were in sequential order mostly except when the errors
started occuring I move some of them around to see if that effected the error
so now they aren't in order. I currently get an error on line:

ActiveChart.SeriesCollection(4).Name = "=""Moreno Valley"""

but this error was occuring on this line before I moved this up a few lines:
ActiveChart.SeriesCollection(2).Name = "=""Corona"""


Why is this erroring out? I believe this is because of some sort of data
corruption, but I am not sure what is causing the data corruptions, and is
there any way to rebuild the flawed data or recompile so that I don't have to
rewrite the entire thing or record a macro all over again to rebuild? Thanks.

Cordially,

Recorded macros are notorious for working for awhile, then not at all. The macro recorder puts in a lot of extra junk and does not do a good job of writing clean code. Step through the code by putting the cursor on the first line

Sub SubName()

then stepping through it by pressing F8. Hopefully by going through step by step, you will be able to see what each piece is doing, and then hopefully catching why the error occurs.

What is the exact error?