No tendon activation found for construction stage

There is a mutiple girder system with pre-tensioned tendons.


If there is no construction stages, the prestressing load from tendons works fine in ASE.

But if I activate the tendon is stage 11 in module “Tendon”

CS 11 11 0
PDEF STR 180.7
PDAT FTL 0.0 FTYP LINE
TEND NOT 1057 TITL ‘N5_5_1’ NOG 1057 NTEN 1 LC 2

and activate the prestressing load “LC 2” in module “CSM”

LC NO ICS1
2 11

Sofistik shows warning and error when running CSM.

+++++ warning no. 319 in program TEST_LC
LC 2 acts on a construction stage P or C for the first time - not allowed,
because that load part would appear in action P or C in the design.
This warning can be switched off with CTRL WARN 319.

+++++ error no. 57 in program IBA1 TENDON
No tendon activation found for construction stage 11

How to solve the issue?