Here is one more small example which I think is representative of the
crash in the sample graphical application with Auto Expressions turned on.
May be the same root cause as the previously submitted small example.

To reproduce:

Freeze with attached class new_test.e (class TEST) and previously submitted
   .ecf file (no precompilation).
Click on Step into Routine.
Turn on Auto Expressions.
Click on Step into Routine 30 times.
Estudio crashes with no trace.