I have attached PNG for jenkins version and the error message what I have from jenkins log.

[root@jenkins-devops ~]# cat /var/lib/jenkins/config.xml | grep "version" | head -n 2 | tail -1 | cut -c 12-15
2.26
[root@jenkins-devops ~]# cat /var/log/jenkins/jenkins.log | grep "ExtendedChoiceParameter"
at com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterDefinition.calculateChoicesByDropdownId(ExtendedChoiceParameterDefinition.java:997)
at com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterDefinition.getMultiLevelDropdownIds(ExtendedChoiceParameterDefinition.java:1014)
at com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterDefinition.calculateChoicesByDropdownId(ExtendedChoiceParameterDefinition.java:997)
at com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterDefinition.getChoicesByDropdownId(ExtendedChoiceParameterDefinition.java:1040)
[root@jenkins-devops ~]#

Hi Team,

I was able to resolve the issue with the following steps : 

1. I have deleted the ExtendedChoiceParameter setting and then apply -> save -> restart safely.
2. I have enabled the ExtendedChoiceParameter setting and then apply -> save -> restart safely
3. In the ExtendedChoiceParameter setting, I made sure the value section must be with TAB SPACE with each other e.g: "Module, Version" instead of "Module,Version".

Hi Team,

I was able to resolve the issue with the following steps : 

1. I have deleted the ExtendedChoiceParameter setting and then apply -> save -> restart safely.
2. I have enabled the ExtendedChoiceParameter setting and then apply -> save -> restart safely
3. In the ExtendedChoiceParameter setting, I made sure the value section must be with TAB SPACE with each other e.g: "Module, Version" instead of "Module,Version".

Hi,

Issue still exits even after follow up of the above explanation.

In fact, done with plugin upgrade and restart performed both safely & hard reboot

which hasn't shown any result.

Thanks

Vivek

Even with a recent Jenkins cire v2.289.1 and very last version 0.82 of the plugin I cannot make it work, even using the snippet generator or the examples on the plugin documentation.