Known problems bugs

• When there is a file upload error (file name too long, file too large, etc.) - the next upload in the same browser session will not start. Refreshing the page fixes it. This is a quirk of the async web server when the client connection is closed uncleanly.
• ESP32 can occasionally hang its network connection, causing the web interface to stall indefinitely on page load. When this happens the kiln program continues running and the LCD continues working. The watchdog is intentionally disabled to prevent mid-program reboots. Restarting WiFi from the LCD menu may help; otherwise a device reboot is needed.
• Large JavaScript files can occasionally trigger this network stall. By default, JS files are loaded from the Internet (HTTP_Local_JS = 0). If you do not have Internet access, set HTTP_Local_JS = 1 in preferences, but be aware this increases stall risk on older ESP32 boards.
• When ESP32 creates a WiFi AP, the DHCP server occasionally fails to assign an address (and may reboot the device). If this happens on your client device, set a static IP: 192.168.10.2/24, gateway 192.168.10.1.