Extension Approved until 12/15???

Wouldn't that be nice.  We have seen two letters come back so far showing the tax period as 2/28/19 (for CALENDAR YEAR plans) and granting extension until 12/15.  What's going on with the iRS anyway?

We had one 1/31/19 plan come back with an extension date of 10/15/19 like it was a calendar year plan.