Thank you very much for Weaver Xtreme. I use it on several sites and hosting clients use it (at my recommendation) on nearly a dozen more.
I do use child themes and 5.0.3 still breaks one of my sites ( https://suddenlyathome.net ). I have tried each release since 5.0 and in each case the Featured Image that should be a thumbnail on the top page (for the most recent 5 posts) shows up full-sized instead.
After trying each version I revert to 4.4.8 and it’s all good again.
Let me know if I can provide any information to help you debug.