Switched to an ESP8266 board rather than the ESP32 board I started with, and I'm seeing the following failure after the board runs for a little while (10's of minutes?)
Checking WiFi status...
WiFi is bueno!
Checking WiFi status...
WiFi is bueno!
Fatal exception 28
ets Jan 8 2013,rst cause:4, boot mode:(3,6)
wdt reset
load 0x40100000, len 31020, room 16
tail 12
chksum 0xd2
ho 0 tail 12 room 4
load 0x3ffe8000, len 1100, room 12
tail 0
chksum 0x9a
load 0x3ffe8450, len 824, room 8
tail 0
chksum 0xbd
csum 0xbd
����g��s��'|�dldl`b��<s�d�g��g�d`��{�d�l�l`��{�l�l�l ��s�l���dl`sd��r$ğ�c��c|lb���c|�Č�ldc��g�'��lg���d�$l�DŽ$`�g����#dl섇c���cl�crl{ls�n����c8cܜc�ld��d#��l�c��g����cpc��c�d$��$b��scandone
state: 0 -> 2 (b0)
state: 2 -> 0 (2)
reconnect
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 8
cnt
connected with ...