Hi,
Conditional step (multi) is incorrect displayed (tables-to-divs-regression) on configure the job. There is added additional TAB "Steps to run if condition is met" on top of page.
Steps to reproduce:

• jenkins 2.289.2-lts or newer (perhaps it start from:  2.264 (weekly) and 2.277.1 (LTS) )
• conditional buildstep 1.4.0+ (in this release it was adapted to 'table-to-div')

• create new freestyle project,
    a) add build step: conditional step (multi)
    b) (optional) add post build step: execute scripts, add post build step, add build step, conditional step (multi)

save the configuration and close/refresh page. After that you will see mentioned TAB - like on attached screen.
I think it is only invalid displayed page, with no degradation for functionality of plugin.

List of plugins on pdf file.