Kicad version : 9.0.4-RC1 running under windows 11 business, version 24H2
Schematic select multiple wires with fe global label port attached (I had it also with other components), try to move to extend the wires. From time to time, kicad freezes and closes.
If you have data collection enabled (Introduce sentry for crash data collection (!1166) · Merge requests · KiCad / KiCad Source Code / kicad · GitLab) you can post your user ID here so the devs can link the crash report to your description
9.0.4 release is out so you should try with that instead of an RC.
Yes, it should be fixed in 9.0.4