I am using ProSeries Professional and I was able e-file returns requiring a Form 1116 Schedule B on 03/10/2022.  I was unable to successfully e-file these same returns, after the 03/09/2022 update, but i attribute my failure to operator error. 

With both the 03/09/2022 and 03/10/2022 e-file attempts I attached pdf Form 1116 Schedule B's, but with my 03/09/2022 submissions did not select the Form 1116 pdf attachment type.