I have Created Jenkins pipeline using pipeline script. After first run when i click on configure and see the pipeline code it shows empty.I have try to execute the pipeline it run but the code is empty. I am unable to update my pipeline or my code as it is empty. Jenkins Version i use 2.222.3. I have tried copying pipeline multiple time but it gets blank after i run the job.

• I have clicked  save and apply in pipeline job
  *I have tried taking checkout of Jenkins file from git repository.Still it has same problem the settings get clears and it shows empty when i open it for the next time.
  *Tried keeping jenkins file in git and taking checkout still everthing getting vanshed 
  *I have tried in various browser Firefox,Chrome,Internet explorer every where its same
  *Normal other jobs are working fine only issue with the pipeline