Hi Norman,
Please use the below methods to monitor errors. Do you use python or our Blockly module? How do you set ‘wait’ parameter? You can send your project to minna.zhong@ufactory.cc, and provide more details, we will help to troubleshoot the problem.
if arm.warn_code != 0:
arm.emergency_stop()
#arm.clean_warn()
if arm.error_code != 0:
arm.clean_error()
Best regards,
Minna