Flash new version 2V10 results in infinite loop

--- cont ---

Now this is where everything gets interesting. Running on Windows10.

When I upload a previously working code block, modifying only the pin designation, the WebIDE console side locks up, with the inability to enter any content on the L-Hand console side. After many reduction attempts, I narrowed it down to the pin designator of the Neopixel require statement:

const pinneo = NodeMCU.D3;  // GPIO0

require("neopixel").write(pinneo, [0,0,63, 55,77,0, 55,0,77]);

I also pointed this out in a separate companion post:

Sanity Check for Neopixel pin Require statement

It is quite possible that between 2V00 circa mid 2019 and 2V10 current mid 2021 that this issue was noticed and fixed.
I chose not to spend the time to attempt to find a more current working flash version.

https://www.espruino.com/ChangeLog

According to this reference:

https://www.wemos.cc/en/latest/d1/d1_min­i.html

D0 and D2 are available as general GPIO

D0	IO	GPIO16

D3	IO, 10k Pull-up	GPIO0
D4	IO, 10k Pull-up, BUILTIN_LED	GPIO2

and according to this reference:

https://randomnerdtutorials.com/esp8266-­pinout-reference-gpios/

GPIO16 may be used for deep sleep.

--- more ---