Pycharm only breaks on the first breakpoint

I recently upgraded to...

PyCharm 2017.3 (Professional Edition)
Build #PY-173.3727.137, built on November 28, 2017

...and now the debugger only works if it breaks on the first breakpoint it encounters.  

1.  Set breakpoint in function A

2.  Set breakpoint in function B which is called from multiple places

Debugger will stop on breakpoint #2 in B if it first breaks on #1 in A.  But if B is called from another function, debugger will NOT break on breakpoint #2 in B.