I have a Paph Amelia Hart Alexander that has been in bloom since October,
and was working on a seventh bud right now. When I picked it up today to
take a better look at it, the bud just dropped off.

Looking inside I found that the pouch was much smaller than would be
expected at this stage of bud development, and the pouch was dark (almost
dark red or brown). The bud had grown almost to the size where I had
expected it to open any moment. It's dorsal sepal and petals looked normal.

The leaves of the plant look healthy.

The spike looks like it might still have ideas for another bud after this,
still too small to tell.

My questions a
1) Are reasons for paph bud blast similar to reasons for phal bud blast?
2) I had to move this plant about two weeks ago to my main growing area in
order to vacate its prior spot in a smaller growing area that I needed in
order to keep new plants that I acquired at the New York show isolated from
my collection. Could this be the cause of the bud blast?
3) Aside from looking under the leaves for possible pests, is there anything
else I should look for?
4) Should I cut off the flower spike? Would this be the Paph's way of
telling me that it's flowering season is done, or that it is stressed and
thus even if there is a possibility of another bud, it's better not to allow
it? Since I have had 7-8 months of blooming from this sequential Paph
already, I won't mind cutting off the spike. On the other hand the plant
does look healthy, and it does have a new growth already, and I wouldn't
want to cut the spike without a good reason -- is there a good reason?
5) I have seen pictures of Paph bud blast, and this bud did not really look
like the pictures I had seen, aside from the small size of the pouch, the
dark color of this pouch. Until this evening when the bud fell off I had no
idea that it was not developing normally. Is this unusual?

Thanks,
Joanna