losing post build steps(Jenkins 1.623 and above)

[yoram]

Upon reboot of jenkins and my machine, the post build steps disappear on all my job configs. When I look at the config.xml for the job, the steps are there and also when I try to reload from disk - they are not refreshed in the UI. I tried the cli reload-job and the only way I can fix this is to re-enter the steps by hand but then they get lost again when jenkins memory is flushed ( say due to a reboot ). What is possible to fix this issue ? any help would be appreciated/ This only happens with post build steps on the jobs - build steps are retained. 

thank you