Thus far the crash appears to be caused when adding a second tab to the tab ruler or editing it, regardless of left, centre, right or decimal tab, and then clicking the tab ruler...
I'm experiencing an instant crash in 2.10.0.1706 but no crash in 2.0.4.
Tab Crash.mp4
A couple of crash reports attached...
Affinity Publisher 2 Beta-2023-02-20-135052.ipsAffinity Publisher 2 Beta-2023-02-20-134547.ips