I build 126.96.36.199 from sources (not modified)
Not run display manager with 512MiB memory. And console login not run. With 768MiB display manager work fine.
Gateway and Workstation:
Cannot boot in live mode with any RAM (512, 768, 1024, 2048).
I build 188.8.131.52.3 version from sources, and it work fine.
Problem only in 184.108.40.206 (and 220.127.116.11, and probably 16.* versions)