finally I found, the problem was that I tried to decrease memory size and I set mbedTLS maximum incoming fragment length to 8192. It needs to be minimum 16384.

Hi All, I need OTA refresh in my ESP IDF 5 (master branch) used application. It needs https and I already used a certificate in my application for mqtt communication and there is no problem. I want to used this same server for OTA, but it does not works. I have a global cert in my code used for mqtt...