Svg line chart problem with latest patch?

Hi team,
I was checking out one page containing an SVG chart that I didn't modify in 2 weeks, according to the application builder, but it seems to hang after displaying the first line series of 4 total.
It was working before the last patch was installed.
It's page 65 of application 21670 in the online environment.
Choose "automobile" from the first drop down list and click on the button, the chart appears but then it seems to be waiting for something to download.
If you move the mouse over any textual part, you can see in the status line the following message:
"xml processing instuction not at start of external entity: line 172, column 0".
If you open up the SVG source by right clicking on the chart, you will see at the end of the file an error text message returned by oracle (ORA-06502), but what is particularly strange is the presence of an <?xml> processing instruction just in the middle of the source code listing.
It looks like it is trying to append the second chart series by appending another svg source file.
Could you check if I did anything wrong or if it is a problem of the patch?
I have got other chart type running without problems.
Thanks!
Bye,
Flavio

Things are getting complicated.
I found some cases where the chart is displayed correctly, which made me think of some unexpected values returned by the underlying queries.
Since my chart is made up of 4 different series returning 12 points each, I assembled the queries with UNION ALL and checked out what was returned both in a failing case and a successful one but I can't figure out a valid explanation, the only thing I notice is that in the failing case there are some values higher than average, say 10 times bigger than the average value and for some reason the chart stops drawing points exactly after the peak value (1155.62, see below).
Each series returns exactly 12 points, some nulls, but that's doesn't seem to be the problem.
I wonder if the problem is with the "autoscale" algorithm, but I am lost at the moment...
Here is a successful data sample:
- APRIL -
- APRIL 119.57125
- APRIL -
- APRIL -
- AUGUST 160.5
- AUGUST 157.53
- AUGUST 157.53
- AUGUST 119.57125
- DECEMBER -
- DECEMBER 119.57125
- DECEMBER 113.67
- DECEMBER 131.214
- FEBRUARY 104
- FEBRUARY 119.57125
- FEBRUARY 126.418333333333333333333333333333333333
- FEBRUARY 125
- JANUARY 153
- JANUARY 119.57125
- JANUARY 134.845
- JANUARY 145
- JULY 154.56
- JULY 119.57125
- JULY 154.56
- JULY 154.56
- JUNE -
- JUNE -
- JUNE -
- JUNE 119.57125
- MARCH 43.5
- MARCH 119.57125
- MARCH 106.918333333333333333333333333333333333
- MARCH 100.166666666666666666666666666666666667
- MAY -
- MAY 119.57125
- MAY -
- MAY -
- NOVEMBER 118
- NOVEMBER 131.214
- NOVEMBER 125.3775
- NOVEMBER 119.57125
- OCTOBER 164
- OCTOBER 119.57125
- OCTOBER 134.5175
- OCTOBER 134.5175
- SEPTEMBER 59.01
- SEPTEMBER 119.57125
- SEPTEMBER 124.69
- SEPTEMBER 124.69
and now an offending one:
- APRIL -
- APRIL 287.743333333333333333333333333333333333
- APRIL -
- APRIL -
- AUGUST 1155.62
- AUGUST 655.09
- AUGUST 655.09
- AUGUST 287.743333333333333333333333333333333333
- DECEMBER 135
- DECEMBER 287.743333333333333333333333333333333333
- DECEMBER 197.2525
- DECEMBER 349.865
- FEBRUARY 114
- FEBRUARY 287.743333333333333333333333333333333333
- FEBRUARY 315.947142857142857142857142857142857143
- FEBRUARY 130
- JANUARY 153
- JANUARY 287.743333333333333333333333333333333333
- JANUARY 321.741428571428571428571428571428571429
- JANUARY 190
- JULY 154.56
- JULY 287.743333333333333333333333333333333333
- JULY 154.56
- JULY 154.56
- JUNE -
- JUNE -
- JUNE -
- JUNE 287.743333333333333333333333333333333333
- MARCH 223.5
- MARCH 287.743333333333333333333333333333333333
- MARCH 182.787142857142857142857142857142857143
- MARCH 156.375
- MAY -
- MAY 287.743333333333333333333333333333333333
- MAY -
- MAY -
- NOVEMBER 118
- NOVEMBER 392.838
- NOVEMBER 452.4075
- NOVEMBER 287.743333333333333333333333333333333333
- OCTOBER 354
- OCTOBER 287.743333333333333333333333333333333333
- OCTOBER 461.5475
- OCTOBER 461.5475
- SEPTEMBER 182.01
- SEPTEMBER 287.743333333333333333333333333333333333
- SEPTEMBER 497.396666666666666666666666666666666667
- SEPTEMBER 497.396666666666666666666666666666666667
Weird, isn'it?
Bye,
Flavio

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