PROBLEM:
Errors while importing users from a text file with Libra Esva version 2.5.0.2 and 2.5.0.3.
SOLUTION:
The bug is resolved by Libra Esva 2.5.0.3 Patch.
To resolve download and apply as a normal update the patch published under section Download->Libra Esva Antispam->Patches and Fixes