Using Shelf slows loading of welcome text

URL of experiment: prolificExpt [PsychoPy]

Description of the problem:
I have a multi-session study in which participants are assigned to one of six groups and sessions are tracked using shelfs on pavlovia. However, this code takes a little while to load and I would like to at least show some text on screen to show that the experiment is running so participants do not close the screen and therefore not complete the first session. I’ve tried to set the text at the beginning of the experiment as “Loading” and update every frame once the ID and session and group information is updated, but this does not seem to work

The way to show a message during a slow operation is to put a routine which shows a text component for one frame prior to the routine with slow code in Begin Routine.

Check you are keeping your number of shelf calls to a minimum.