A string with a bracket "()" gets chopped in parsing

[ezaton]

I have a rule which looks like this:
echo /usr/bin/sudo /usr/sbin/openconnect {s:Connection-Other} --protocol {s:Connection-Protocol} {s:Connection-Address}
When the value of "Connection-Other" includes:
--csd-wrapper=/home/ezaton/bin/trojans_tncc-emulate.py --force-trojan=600
and additional text contents, I get the command to print correctly.
When the value includes:
--useragent 'Mozilla/5.0 (Linux) Firefox'
(including the single tags and the brackets), the result shows like this:
/usr/bin/sudo /usr/sbin/openconnect --useragent Mozilla/5.0
The remaining of the text is cut, and the command is not executed correctly, of course.
The stopping point is always the opening bracket. Escaping it using backslash did not work.
Platform: Linux, Ubuntu 22.04
KeyPass version: 2.54
Advanced Connect Plugin version: 1.0.7

Thank you!