Shizuko and Xperia 1V

I've been using Shizuko + Pixel IMS for VoWifi on my Xperia 1V successfully for quite sometime, however, after the most recent security update on my 1V, it doesn't work anymore. Pixel IMS just crashes and no longer enables VoWifi when I toggle it on. Is anyone else experiencing this too? Any insight would be greatly appreciated!

Here hoping...

Thank you all in advance.