Tamed wolf invisible

Tamed wolf suddenly became invisible (not potion). Could see wolf's bubbles in water and became visible in boat but disappeared again when boat mined. Behaviour remained despite being invisible including barking.
Another time wolf was frozen in place and wouldn't sit with no sit action command coming onto screen. Could be punched and have a lead put on but wouldn't move even with lead. Wouldn't teleport if player moved away either.