unable to teach sit up

Could you please provide some details what happens ? Do you not have the option ? Do they never learn it ? 

the option comes up but it freezes and empties the cue never practicing sitting

can I uninstall this patch?

HI dee15644​ 

no, patches can't be uninstalled.

Please try the clean folder approach described here: 📓[GUIDE] Clean User Folder Approach | EA Forums - 12690428