I think in general, SDP’s are still very hard to solve, and you’re likely to run into issues no matter what solver you use. The most stable would be Mosek or COPT. Other than that… SCS is robust but low accuracy. I’ve had good experiences with Clarabel, but even that failed on some pretty small OPF examples.
None of them hang or segfault though… so if you have reproducible examples, please open an issue.