I have a couple of Wemos D1 Mini running WLED the precombiled WLED_0.10.0_ESP8266_1M_ota.bin from Github. Now I wanted to try out a usermod, so I installed platformIO for VS Code and compiled Wled myself with the usermod. That is working fine.
Now I wanted to try it so I started an OTA update going to config -> security & updates -> manual OTA update and selected the esp01_1m_ota .bin file that I created. Unfortunately the update fails with
Failed updating firmware! Please check your file and retry!
Why is this happening? Can I see any logs somewhere to find out why?