Dear Admin
I too am having trouble opening test model two. Last week it would just freeze up this week I can get it to open, but there's no model only grid lines.
I've down loaded the test model and tekla 21.1 a couple of times. but still no joy.
I'm running 64 bit too.
Thanks Barry
Hi, please download and install the latest Tekla Structures Learning 21.1 SR2 version and then download the model again. I hope this solves the problem.