Libre Draw Crashing with Signature Entry Option

Leap 15.4, Kernerl 5.14.21-150400.24.60, Plasma 5.24.4
Libre Draw 7.4.3.2

Every time without fail when I try to insert a signature via the Insert > Signature Line option, Libre Draw freezes up completely.

I don’t know how to diagnose this.

How do I fix this ?

What must I do to enable “Signature Line”? It is greyed out here.
Wanted try it here, same software configuration like you.
It is working in Writer and Calc, but it is greyed out in Draw.