Is it just me or is there some problem seeing 'X' availablity in EF right now (8:30 pm EDT)?

I get the following message:

One or more of your requests could not be fulfilled. This is likely due to invalid input criteria or lack of access to the information from the airline. Please revise the search parameters and try again.

I took 'X' out of the fare code field and I get the flights and fare classes, but put 'X' in the field and I get that error message.

I was upgraded on my flight at the 100 hr mark but never received my flight alert and it still shows as pending.

Something is up.