diff -r b6674724612a -r 8e772f275be8 eric6/Debugger/DebuggerInterfacePython.py --- a/eric6/Debugger/DebuggerInterfacePython.py Mon Feb 03 19:54:02 2020 +0100 +++ b/eric6/Debugger/DebuggerInterfacePython.py Tue Feb 04 18:57:29 2020 +0100 @@ -557,6 +557,8 @@ for debuggerId in self.__connections: if self.__connections[debuggerId] is sock: del self.__connections[debuggerId] + if debuggerId == self.__master: + self.__master = None break else: if sock in self.__pendingConnections: