Why aren't Tempo accounts working in existing queries as of 6/9/17?

[Laurie Childers]

As of this morning, 6/9/17, all existing queries our users had that involved Tempo Accounts no longer work.  Prior to today, accounts were referenced by a system-generated number in the Advanced queries.  You can see this by toggling to "Advanced" and viewing the query string.  As of today, the IDs don't work and the account name must be the actual full name of the account in quotes.  Additionally, the  two dimensional filter statistics used to include account in the XAxis and YAxis options, but as of today, account is no longer an option for X or Y.

What changed and how can we get our queries working again without having to recreate them all?