After posting on this forum a while ago on getting started I have diligently been learning all I can from the tutorials, as well as playing around with any assets I can get my hands on. So far so good, until today.
Today I made a blueprint for a circle you walk into, and a bunch of lights and effects trigger upon keypress, simple stuff. All worked well, I closed it down, but then had an idea to add further to it and I went into the viewport for it and found that it was entirely grey. (see image). I saw a thread somewhere that linked this to the “destroy actor” node, but I am not using that command in my blueprint. The objects are visible in all of the views except perspective.
Any help to resolve this will be great!