I got a issue too, CC once started does not get data from R3E.
Here the part of the log when starting CC and when i close it :


Using game definition Race Room
17:29:05.722 : Loading user-configured command macros from Documents/CrewChiefV4/ folder
17:29:05.741 : Free text action macro, text = "Sorry, my bad" key presses to send = KEY_S, KEY_O, KEY_R, KEY_R, KEY_Y, OEM_COMMA, SPACE_BAR, KEY_M, KEY_Y, SPACE_BAR, KEY_B, KEY_A, KEY_D
17:29:05.741 : Free text action macro, text = "good pass" key presses to send = KEY_G, KEY_O, KEY_O, KEY_D, SPACE_BAR, KEY_P, KEY_A, KEY_S, KEY_S
17:29:05.791 : Loaded 98 default car class definitions and 0 user defined car class definitions
17:29:05.828 : No user defined landmarks found
17:29:05.829 : Listening for buttons
17:29:05.832 : ThreadManager: Wating for root threads to start...
17:29:05.832 : ThreadManager: Root threads started
17:29:05.851 : Starting queue monitor
17:29:05.853 : Monitor starting
17:29:06.259 : Playing sounds, events: COMPOUND_smoke_test_chief
17:29:06.259 : (radio_check/test)
17:29:06.663 : Polling for shared data every 100ms
17:29:06.666 : Initialising...
17:29:06.668 : Initialised raceroom shared memory
17:29:07.171 : There are 1 more events in the queue, playing them...
17:29:07.171 : Playing sounds, events: COMPOUND_smoke_test_spotter
17:29:07.171 : (radio_check_Clare/test)
17:29:07.171 : PlaybackModerator: Injecting: end_bleep and alternate_short_start_bleep messages. Spotter interrupted Chief.
17:29:09.213 : PlaybackModerator: Closing radio channel as Spotter
17:45:55.925 : Resuming console scrolling
17:45:55.925 : Application stopped
17:45:55.925 : ThreadManager: Wating for Root threads to stop...
17:45:55.945 : Stopping queue monitor
17:45:55.945 : Waiting for queue monitor to stop...
17:45:55.945 : Monitor queue stopped
17:45:56.125 : ThreadManager: Root threads stopped
17:45:56.125 : ThreadManager: Wating for Temporary threads to stop...
17:45:56.125 : ThreadManager: Temporary threads stopped

seems its only me as i didnt see same issue from others.