Using ExtendedChoiceParameter in our Jenkins build process, build parameter comes as empty

[rgopalan1]

Steps to reproduce

How can we reproduce the issue
Use Extended Choice parameter with value as "Foo,Bar,Test" (multi-select) and delimiter as ";"

Expected behaviour

Parameter should pass as simple parameter only as (Foo;Bar;Test)

Actual behaviour

I am getting the following log message "Job property '%s' is not a Simple parameter. Keeping default value"

Server configuration

Operating system:
Windows

Jenkins Version:
Jenkins ver. 2.190.2

Plugin Version:
1.026

Mail Server:
Microsoft Exchange Server 2016

Additional Steps/Questions

• Can you please provide all the configuration details you're using (hide sensitive fields) and any other information which may help? (does it match the examples here?)
• Do you know if you're you able to connect to to your mail server via IMAP?
• What log messages do you receive, when you press the "Test Connection" button?
• Have you followed the troubleshooting section on the plugin page?

If you're feeling ambitious, you can also try setting up a LogRecorder for the Jenkins plugin (the logger package name will be something like "org.jenkinsci.plugins.pollmailboxtrigger"). This may provide extra insight into why your issue is occurring.

[rgopalan1]

We are looking for a change as soon as possible