I tried Enable Debug Dylib Support = NO. At the beginning I saw that the message was gone and I was really happy, but then I tried to make some crashes but no dsym files were uploaded in Firebase. I switched again in Yes and I saw the message again, but after that when I made some crashes, I saw the logs in Firebase. I cannot say that I have a clear answer or I realised exactly what happened, but now it's working. In all these tries I run my app from Xcode of course, but sometimes I just run my app directly from the phone. I don't know if this helped the situation for this thing to unstuck. I hope that maybe someone will get some help from all these and make it work