Found a short between CLK and SD0 under the module, thanks for the tip Sprite. Saved me a lot of time!

Im not using the flash SPI pins for anything else, although they are broken out to a header (which is unpopulated). I will probe those pins to see if they look funky during startup. Let me know if you have any other ideas. Thanks!

Hi, We just spun our first board and are having issues flashing the esp32 WROOM 32D module. The USB circuit is the exact same as the devkitc v4 (https://dl.espressif.com/dl/schematics/esp32_devkitc_v4-sch.pdf). The logs of the devkit flashing and our board flashing are below- our board gets hung up ...