form 8801 line 25 not populated

Line 25 is BLANK with no entry.  It is  supposed to be the smaller of line 21 or line 24 , both of which have values greater than zero.  Until today, Saturday March 7th, line 25 was populated properly, but now, after the latest update, it is BLANK and I cannot seem to get my tax credit entered.

 

I have deleted the form and re-loaded it to no avail.