During a validation test of a scenario written with Neoload 4.2 and migrated to v5.5, a NL-OF-PLUGIN-ENGINE-01 error occured on an "initial_version" page.
What I already did...
Does your 4.2 script still work?
You should try a new recording to make sure that your script is still valid in case somehting has changed in your application.
That error may...