Different Behavior of hiGetCurrentForm()~>hiFormSym in ic and icadvm Version

Hello Skill Experts,

Hopefully you all are doing good . I have two queries on which currently i am facing issues :-

1. The Following command hiGetCurrent()~>hiFormSym has different output in ic and icadvm when a form is invoked for the first time after Virtuoso Invocation.

      for ic version (06.18.050) the output is the name of form symbol which is expected 

      for icadvm version (18.10.090) the output is deopenForm and Pointing to the callback function (which is not expected).

      Note :- The issue is only happening for the first time when each form is invoked for the first time.

2.  I want to trigger a procedure only when a layoutview is opened and I am using deRegUserTriggers in the .cdsinit file but its giving following error :-

    Error* _deBasePrintMsg: (DEBASE-103038): User Application trigger can only be registered with a root class viewType.

Can you please help on these points ?

Thanks in advance,

Regards

Sonu