2nd amended return 1040-X

I mailed in a 2nd amendment to my 2016 return on 4/6/20 (which was 18 weeks ago).  When I try to use the "where's my amended return" tool on the IRS website, it reports on the 1ft amendment (that I did last year) and lists it as complete but it does not report on the status of the 2nd amendment that I did this year.

 

Is there a way to check the status of a 2nd amendment?  Should it be complete if it has been 18 weeks since I mailed it?

 

Thanks in advance for help with this.🙂