Yes, it seemed after I cast a buff on the pet is when the crashing started happening. Glad you're on top of that
Just like the above post, I also was experiencing odd HP values. For example, if I had Temperance and died then respawned, my HP bar showed something like 4200/5000. 5000 was the value with Temp, 4200 was my actual without temp, and my % hovered around 83 or whatever it was.