Text/polygon not showing up in builder

Hey lovely people of the Pychopy community,

I´m a psych BA student, working on my thesis and using program for the first time.
I´ve been getting along very well so far, mainly using text and polygons for a reaction time paradigm.
But now what I put in, a star polygon, just wont show up. The settings are the same basic ones as before.

Can anyone give me a hint why and what I can do to fix it?

Best wishes and thank you in advance!