About an hour ago, a banwave happened that appears to be for Tailors that had used too many Azureweave and Chronocloth cooldowns. Those cooldowns were resetting multiple times a day, sometimes from activities simple as entering dungeons or joining a premade group.
Ever since they were added to beta, Azureweave and Chronocloth had their cooldowns tweaked constantly and the tailoring UI, shown below, has no indication of cooldown duration.