My cats and dogs still have collars like they are tamed but do not sit or stand when I select them. It is like they are not my animals but I have tried with my character and Steve. neither can make a dog or cat sit stand or follow.
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Thank you for taking the time to report this on the bugtracker. However, we're already tracking this issue as MCPE-50467. You can leave a vote if you feel like it on that ticket. If you haven't already, try out the search feature for if you report another bug👍.