forticlient won't update from cli, but shows it is updated in the app window

Hello,

i have forticlient version 5.2.3 on some of my old machines (i can't replace them atm).

up to 15/06 i was able to run the update_task command with no problem.

starting that date above - running the update task (update_task.exe -s FC_******) would result in the attached response (i've deleted many similar lines, to be able to upload the file here).

but, if i check the definitions on the forticlient window - it says it got updated today.

any help would be appreciated!

thanks!