Paph leaf rotting from tip

[julie_987]

Hello Everyone. Newbie here. I've been lurking for awhile now and have learned A LOT thanks to everyone on this board, but now I need to ask for a bit of extra help I have a Paph Hsinying Web x Callosum that looked fine up until a couple of days ago. Then the flower shriveled up and died (It had been in bloom for nearly 2mnts though) and then today I noticed one of the leaves is turning brown from the tip. It looks a bit liquidy and the leaf tip is missing like it's been eaten. I've looked for bugs but don't see any. I did put it in a bright-ish window the other morning. Could it be a sun burn?
I'm going to try to post pictures. Hopefully this works.
Thanks so much for all of your help!