Internal order work flow problem

Question

Both WF issues are related to internal orders  , Transaction KO03
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Example for 1 st case  
consider A , 1 , 2, 3 , 4 are approvers
A --->>>>     1)  , 2) , 3) , 4)
if A doesnt  approved in 3 days , then it go to 1 , 2, 3, 4
after 3 days , any one of them 1, 2 ,3 , 4 can approve it
3 days passes , but before any one of them approve , its already approved by A
all of  1, 2 , 3, 4 have mail in their inbox for approval , but
here work flow is completed , what work flow is supposed to do , it does
, but in status error is coming .
why this is error is coming , even when workflow completed and workflow does its job
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Second problem
one user X have approved , after its approval status should change to approved ,
but it is not changing  and it is showing status in process .
therefore work flow monitoring team , who is checking which  WF request are still in process
again  initiating workflow .
Now again same cycle repeats , it again comes to inbox of same user  , who earlier approves.
Please suggest  why status is not changing , even after approval , why it is showing status in process
and why same user  X , who earlier approves it , getting mail in its inbox for approving it.

Answer 1

What is G/R?