Essbase error Failed to send data Invalid block header: Illegal block type

Hi,

I am running a calc script and suddenly got to see below error. This script was running file earlier. No changes to system or outline.

Cache Settings:(KB)

Index Cache : 1024

Data File cache : 32768

Data Cache : 10240

Index Current page size : 8kb

Below are calc script set commands

SET AGGMISSG ON;

SET UPDATECALC OFF;

SET CALCPARALLEL 2;

SET CALCTASKDIMS 3;

Network error [32]: Failed to send data Invalid block header: Illegal block type.

Assertion Failure - id=7333 condition='((!( dbp )->bFatalError))'

                  - line 5050 in file kernel/datbuffm.c

                  - arguments [1006016] [0] [0] [0]

Signal Number:         0x4=Illegal Instruction

Signal Code:           0x-718031608=Unknown

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