Using src.filters += filter() will cause a index out of bounds error.
Numbered Steps to Reproduce Problem:
src.filters += filter(type="drop_shadow",size=1)
Expected Results:
The filter is added.
Actual Results:
A runtime error is produced.
Does the problem occur:
Every time? Or how often? Yes
In other games? n/a
On other computers? n/a
When does the problem NOT occur?
When using = instead of +=
Workarounds:
src.filters = filter(type="drop_shadow",size=1)
