After upgrading jenkins to the latest version (Jenkins ver. 1.511), we are now unable to get the env vars from UI or API for builds created before we restarted jenkins, but we can access it for builds created after the restart. everytime we restart the ui and api stops working for the prev builds.

attached the images for pre restart build and after restart

calling the api also doesn't work for pre restart builds but does work for after restart builds.

any info will help.

we also tried upgrading the envInject plugin, but same issue still occur.

thanks.