Rio Room Rates February thru May

Has anyone checked room rates for the Rio in the range of February thru May recently?

When I looked without logging in the rates were $100-150 range. After I logged in, the rates went up to $200 to $486 range. WTH? We already have stays booked much cheaper but wanted to check the rates to see if they went down.

Glitch maybe? What do you think?

that should be no surprise, it is CET after all.

Probably a glitch, they are back to normal today. Strange...