@ilia commented on @ilia’s file : I used to have it before when one type was named

viewer

. But I renamed and all went well. I just created extra type with one-to-many relation and all seems broken now.. In playground / app -

Whoops. Looks like an internal server error. Request ID: cj1qtpk4m5j3j0199fynmxgzr

[really annoying, can’t continue working with required relations..]