Can't customize Google Hotword in Android 9

Trying to use Tasker to change the hotword in Android 9 Pie.  I followed the only instructions I could find online (https://www.techjunkie.com/change-ok-google/) but am running in to some issues. Here's what happens:
1.    I get to the point where I am speaking my new hotword in the "Speak Filter".
2.    After speaking my new hotword a window opens asking me to "Choose Voice Command" from a list (which includes variations of the command I just spoke).
3.    Once I choose (confirm) my voice command the "Choose Voice Command" window closes, and "The Hard Way" page comes back up.
4.    I'm supposed to tap a check mark at this point, but there is no checkmark on "The Hard Way" page for me to tap ... so I have to backup to the "AutoVoice Recognition" page to find a check mark to tap
5.    After tapping the check mark on the "AutoVoice Recognition" page I am taken back to the "Edit Event" page.
6.    I'm then supposed to tap the edit button (for "Configuration") again ... and am taken back to the "AutoVoice Recognition" page.
7.    The instructions just say to tap on "Speak Filter", but there is no such option on this page (I am forced to tap on "The Hard Way" again in order to be able to tap on "Speak Filter").
8.    I go through "The Hard Way" to get to "Speak Filter" and repeat the hotword ... and then find myself back at step #3 (above).
9.    I can find no option to "Save" the event ... so I repeat steps 4 and 5. Still no "Save" option.

At this point I'm stuck.  backing up to previous screens eventually opens a prompt asking if I want to delete the unsaved event. 

Is the a 9 Pie issue, or am I doing something wrong? If the latter, please provide me with a detailed step by step guide.

Thank you for your help.