2587236 - updatease run failed after installing ASE patch

After installing ASE patch, updatease run failed. The following messages raise to screen :

Updating Adaptive Server 'ASE_server'...
Running installmaster script...
instmstr: 100% complete.
Updating Adaptive Server failed.
Open Client message: 'ct_results(): network packet layer: internal net library
error: Net-Library operation terminated due to disconnect
'.  Open Client message: 'ct_cancel(): network packet layer: internal net
library error: Net-Library operation terminated due to disconnect
'.
Open Client message: 'ct_cmd_drop(): user api layer: external error: The
connection has been marked dead.
'.
Error fetching results for query: '
declare @gran_perm int
select @gran_perm = value from syscurconfigs
where config = 526
if (@gran_perm is null or @gran_perm = 0)
begin
 if (has_role('sa_role', 0) = 0
    or has_role('sso_role', 0) = 0
    or has_role('sybase_ts_role', 0) = 0
    or has_role('mon_role', 0) = 0)
 begin
                print "You must possess System Administrator (SA) role, System
Security Officer (SSO) role, Sybase Technical Support role and Monitor and
Diagnosis role to run the installmaster script."
                select syb_quit()
        end
end
else
        begin
        if (has_role('sa_serverprivs_role', 0) = 0
           or has_role('sybase_ts_role', 0) = 0
           or has_role('mon_role', 0) = 0)
        begin
                print "You must possess sa_serverprivs_role, Sybase Technical
Support role and Monitor and Diagnosis role to run the installmaster script."
                select syb_quit()
        end
end
'.
Open Client message: 'ct_cmd_drop(): user api layer: external error: The
connection has been marked dead.

• Adaptive Server Enterprise (ASE) 15.7
• Adaptive Server Enterprise (ASE) 16.0

ASE patch, updatease, config = 526, Open Client message, syscurfonfigs, installmaster, sso_role , KBA , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem