No cores were discovered with LPC845

I'm getting the error 'No cores were discovered'. This happens after successfully flashing a valid program.
If I erase the chip (using MCUXpresso, the official IDE for LPC845), the pyocd is able to detect the cores again.

This might be related to issue #743 . But this an NXP LPC845, so the solution proposed there does not work here.

pyocd erase -vv --chip -t lpc845 -O reset_type=hw
0000439:DEBUG:pyusb_backend:[Errno 13] Access denied (insufficient permissions) while trying to interrogate a USB device (VID=1bcf PID=2c94). This can probably be remedied with a udev rule. See <https://github.com/mbedmicro/pyOCD/tree/master/udev> for help.
0000441:DEBUG:pyusb_backend:[Errno 13] Access denied (insufficient permissions) while trying to interrogate a USB device (VID=05f3 PID=0007). This can probably be remedied with a udev rule. See <https://github.com/mbedmicro/pyOCD/tree/master/udev> for help.
0000441:DEBUG:pyusb_backend:[Errno 13] Access denied (insufficient permissions) while trying to interrogate a USB device (VID=145f PID=0263). This can probably be remedied with a udev rule. See <https://github.com/mbedmicro/pyOCD/tree/master/udev> for help.
0000442:DEBUG:pyusb_v2_backend:[Errno 13] Access denied (insufficient permissions) while trying to interrogate a USB device (VID=1bcf PID=2c94). This can probably be remedied with a udev rule. See <https://github.com/mbedmicro/pyOCD/tree/master/udev> for help.
0000443:DEBUG:pyusb_v2_backend:[Errno 13] Access denied (insufficient permissions) while trying to interrogate a USB device (VID=05f3 PID=0007). This can probably be remedied with a udev rule. See <https://github.com/mbedmicro/pyOCD/tree/master/udev> for help.
0000443:DEBUG:pyusb_v2_backend:[Errno 13] Access denied (insufficient permissions) while trying to interrogate a USB device (VID=145f PID=0263). This can probably be remedied with a udev rule. See <https://github.com/mbedmicro/pyOCD/tree/master/udev> for help.
0000768:DEBUG:session:Project directory: /home/pablo/pyocd2
0000936:WARNING:cmsis_pack:Overlapping memory regions in file <zipfile.ZipFile filename='/home/pablo/.local/share/cmsis-pack-manager/NXP/LPC845_DFP/12.3.0.pack' mode='r'>, deleting outer region. Further warnings will be suppressed for this file.
0000956:INFO:board:Target type is lpc845
0000957:DEBUG:pyusb_backend:[Errno 13] Access denied (insufficient permissions) while trying to interrogate a USB device (VID=1bcf PID=2c94). This can probably be remedied with a udev rule. See <https://github.com/mbedmicro/pyOCD/tree/master/udev> for help.
0000959:DEBUG:pyusb_backend:Detaching Kernel Driver of Interface 0 from USB device (VID=1fc9 PID=0090).
0000965:DEBUG:dap_access_cmsis_dap:CMSIS-DAP probe I3F4M0GS firmware version: 1.10
0000971:DEBUG:sequencer:Running task load_svd
0001033:DEBUG:sequencer:Running task pre_connect
0001033:DEBUG:sequencer:Running task dp_init
0001033:DEBUG:sequencer:Running task lock_probe
0001033:DEBUG:sequencer:Running task get_probe_capabilities
0001038:DEBUG:sequencer:Running task connect
0001118:DEBUG:dap:Default wire protocol selected; using SWD
0001124:DEBUG:swj:Sending deprecated SWJ sequence to select SWD
0001134:INFO:dap:DP IDR = 0x0bc11477 (v1 MINDP rev0)
0001134:DEBUG:sequencer:Running task clear_sticky_err
0001134:DEBUG:sequencer:Running task power_up_debug
0001135:DEBUG:sequencer:Running task check_version
0001135:DEBUG:sequencer:Running task unlock_probe
0001135:DEBUG:sequencer:Running task create_discoverer
0001135:DEBUG:sequencer:Running task discovery
0001135:DEBUG:sequencer:Running task find_aps
0001139:DEBUG:sequencer:Running task create_aps
0001139:DEBUG:sequencer:Running task create_ap.0
0001140:INFO:ap:AHB-AP#0 IDR = 0x04770031 (AHB-AP var3 rev0)
0001142:DEBUG:ap:AHB-AP#0 default HPROT=3 HNONSEC=0
0001143:DEBUG:ap:AHB-AP#0 implemented HPROT=3 HNONSEC=0
0001144:DEBUG:sequencer:Running task find_components
0001144:DEBUG:sequencer:Running task init_ap.0
0001149:WARNING:rom_table:Invalid coresight component, cidr=0x0
0001149:DEBUG:sequencer:Running task create_cores
0001149:DEBUG:sequencer:Running task set_default_reset_type
0001149:DEBUG:sequencer:Running task create_components
0001149:DEBUG:sequencer:Running task check_for_cores
0001150:DEBUG:session:uninit session <pyocd.core.session.Session object at 0x7fd405854470>
0001150:DEBUG:pyusb_backend:closing interface
0001152:CRITICAL:__main__:No cores were discovered!

Start by reproducing the reported pyocd erase -vv --chip -t lpc845 -O reset_type=hw command and inspect the discovery sequence around find_components, create_cores, and check_for_cores. Compare behavior before and after erasing the LPC845, and review issue #743 for related context. Done means pyOCD discovers the cores after flashing a valid program without requiring a separate IDE erase.