Hi @DJM45.
Thank you for the video. I’ve recreated your steps in our lab, but I didn’t have any issue connecting to the PLCSIM and to Factory I/O.
I suggest you first create a new project on TIA Portal, without the template, with the S7-1500 PLC you want to simulate. Then try to connect to PLCSIM. If the PLCSIM still gives you an error then it’s most likely an issue with the Siemens software and not the template. In that case, we can’t help you, and you’d have to contact Siemens about it.
If you don’t get any error on PLCSIM, then you can try to recreate our template. For that, you can follow the steps described in this post.