Literally just what I said. Automatic server crash when linking any photon transmitter to glass.
crash-2020-06-18_17.50.49-server.txt

Can confirm on my server as well

Can confirm too, I tried using only:

• fabric-api-0.18.0+build.387-1.16.1
• doorsofinfinity-1.0.7-1.16.1
• immersive-portals-0.27-mc1.16.1-fabric

Game version 1.16.1

I can also confirm, it crashes on my server too.

Confirmed- crashes the dedicated server-
Server log- https://gist.github.com/ProsperCraft/d44437dc2102ba49b577813665cc370b
Crashlog- https://gist.github.com/ProsperCraft/78f504569e996ddbfb182528d331bd71
fabric-api-0.25.0+build.415-1.16
doorsofinfinity-1.0.8-1.16.3
immersive-portals-0.41-mc1.16.3-fabric

Modpack- The Adventures of Halk for 1.16 0.11

same thing for me, entire server just insta crashes the second I try to use the photon link on glass.