Adding Breakpoints is Inconsistent

**UE4 Version**
4.24.3

**SkookumScript Version**
4.24.03

**Describe the bug**
Adding and removing breakpoints via the IDE is inconsistent. Sometimes hitting F9 adds/removes the breakpoint, while other times it does not. Sometimes accessing the option via the menu works when the hotkey does not.

It seems that modifying things via the Breakpoints window is the most consistent way to toggle and remove breakpoints. Remove all breakpoints always seems to work.

**Expected behavior**
If the runtime is connected, this should just work. If the runtime is not connected we should print a warning to the IDE log.

Start by reproducing breakpoint toggling with F9, the menu, and the Breakpoints window while the runtime is connected and disconnected. Trace the IDE breakpoint actions and their runtime connection handling, then verify that toggling works consistently when connected and that disconnected actions produce a warning in the IDE log.

Written by the indexing model from the issue text.