Need help with ESP32 and MAX7219

Please don't double-post your questions on the official boards forum. This is the right place - I've deleted your other post.

Try using software SPI rather than hardware SPI, that may solve your issues...

var spi = new SPI();
spi.setup({mosi:D23, sck:D18});
 let g = require('MAX7219').connect(spi,D5,4);
...