Updated to 5.9.2 and script no longer working

I recently upgraded to 5.9.2 and now my automated script is not working. The script is

option confirm off
option batch abort
open sftp://seaice@monkey.alaska.edu -privatekey=C:\Radar_config\icepirate.ppk
synchronize local "C:\\Radar_data\\1HrMotion\\" /mnt/data/radar_uaf/-filemask="*.png>90N; |*masked.png"
exit

Did something change in the new version that means this script won't work?
Thanks in advance for your help.

Have you tried enabling logging? Maybe it will provide some insight.

What does it mean "is not working"? Any error message? Show us a log file.

You are definitely missing a space between the /mnt/data/radar_uaf/ and the -filemask. But that could never work.