After stopping at a breakpoint, Alt+Shift+E gives Name Error while F8 does not

Here's the issue I'm having: when I stop at a breakpoint with the debugger and try to execute a line of code in the console with Alt+Shift+E, I get name errors for basically every variable. When I execute the same line as part of the normal program with F8, I get no such name error. Here's a simple example:

1  def center_in_other_rect(self, outer_rect, inner_rect):
2      x = (outer_rect[0] - inner_rect[0])/2
3      y = (outer_rect[1] - inner_rect[1])/2
4      return x, y

If I put a breakpoint on line 2 and then Alt+Shift+E that line once the breakpoint is hit, I get a name error that outer_rect is not defined. But if I then execute the lines normally with F8 (or F9, or in normal run mode), everything works fine. (The code excerpt is from a larger program, I know it wouldn't run on its own as written)

Any idea what's going on here? I can share things about my configuration if that will be useful.