Marc,

First, neat conservatory!

The sticky stuff is common and is not a problem.

the Cym, I am not an expert on them by any means, but if it is blooming
now then definitely wait to repot. The best time to repot is when you see
new growth, if you can manage it. As far as the leafless pseudobulbs,
unless they are shriveled dry or soft (rotted) it's best to leave them with
the plant, as they hold moisture and nutrients for the plant's use.

The Catt is lovely, but I doubt that an ID is possible. Big-time rule: Get
Tags!!

Best,

Diana