PAK: PE error 2.048: column store error: TREX Planning Engine command error

When executing a PAK function on a DSO the system dumps after IF_RSPLFA_SRVTYPE_TREX_EXEC~TREX_EXECUTE

The error seem to occur in  CL_RSPLS_SESSION_STORE_MANAGER->MATERIALIZE_VIEW in connection with statement

me->p_r_rsr_store->update_view( i_viewnm = r_view ).

The dump (st22) states:

This exception is closely related to a previous exception "CX_RSR_PE_ERROR", which

was raised in program "CL_RSR_PE_ADAPTER=============CP", in line 86 of

(include) program "CL_RSR_PE_ADAPTER=============CM00H". The

reason for the exception occurring was:

PE error 2.048: column store error: TREX Planning Engine command error:

[38001] PlanningEngine internal error;#Condition 'aSession.is_valid()'

The system specifics are HANA version 70 and

SAP_BASIS    740    0005    SAPKB74005

SAP_ABA    740    0005    SAPKA74005

SAP_GWFND    740    0005    SAPK-74005INSAPGWFND

SAP_UI    740    0006    SAPK-74006INSAPUI

PI_BASIS    740    0005    SAPK-74005INPIBASIS

ST-PI    2008_1_710    0007    SAPKITLRE7

BI_CONT    757    0000    -

SAP_BW   740    0005    SAPKW74005

I have tried the solution in OSS 1979401.