in Oracle client 12.1 used from .Net if Stored procedure output parameter is varchar then its values are getting truncated
i.e., Bug 21616079
As per KB article Doc ID 2101352.1 Bug 21616079 fixed in Windows bundle Patch 12.1.0.2.11 and higher
also fixed in Oracle client 12.2 https://docs.oracle.com/database/122/ODBCR/ODBCR.pdf
So we installed 12.2 but it did not help
is there anything else to do ?