I was just starting to preach earlier and put the sermon on my iPad into Preach mode.
It hung with a blank screen - I ended up switching up to the Proclaim app so I could see the notes in my slides.
When I got home I ran some tests and found it was actually just taking more time than I expected - an average of about 12 seconds but once up to nearly 30
Previously it was nearly instantaneous - and I’ve just checked in the Verbum app (stable version) using the same sermon and there is no delay
So looks like something introduced in the current beta