Hi, I extruded the model from Figure 1 and the problem in Figure 2 appeared. I did in the interface of Plaxis LE, what happened?

Dear Sirs, I am working on Tunnel and Galleries example whilst using the Tunnel advancement tool. The tunnel has been excavated but the gallery doesn't seem to be excavated from the tunnel. Can you please advise how can I assign the start of the tunnel…

We use this tool (2Dto3DConverter program) since version 2017. But however, it does not work for PLAXIS CONNECT Editions for PLAXIS 2D. Can PLAXIS help to update the tool？ Many thanks.