Update Step Issue

Hello Team

Got some weird problem . I am using PDI 4.3/postgres DB and using update step to update record.

Problem:-
I have this column data "2017-01-31 17:00:14-08" having data type as "timestamp with time zone" and updating the table by comparing it with "2017-01-31 17:00:14" using "=" comparator.

When i ran the process got the below exception.

ERROR 31-01 23:33:44,210 - Update - Error in step, asking everyone to stop because of:
ERROR 31-01 23:33:44,210 - Update - org.pentaho.di.core.exception.KettleDatabaseException:
Entry to update with following key could not be found: [2017-01-31 17:00:14]


at org.pentaho.di.trans.steps.update.Update.lookupValues(Update.java:133)
at org.pentaho.di.trans.steps.update.Update.processRow(Update.java:327)
at org.pentaho.di.trans.step.RunThread.run(RunThread.java:50)
at java.lang.Thread.run(Unknown Source)


INFO 31-01 23:33:44,211 - Update - Finished processing (I=1, O=0, R=1, W=0, U=0, E=1)

We have 10 servers and out of 10 only 1 server is having this issue. Table structure/code is same .Any one find this issue with Update step