(Note: I've also posted this in the Trailblazer Community (https://trailhead.salesforce.com/trailblazer-community/feed/0D54S00000Fxir6SAB).)

This is highly unusual behavior.
 
I have an Apex trigger that is supposed to update a field in a custom object with a value found in another custom object.
 
The update only goes through when I turn on the Debug Log for my login.
 
Why would this ever be the case?

I took a look at this solution from the site. (https://developer.salesforce.com/docs/atlas.en-us.snapins_web_dev.meta/snapins_web_dev/snapins_web_populate_prechat.htm)

And I don't know how I can apply it to this Use Case:

• I want to add a hidden Pre-Chat field
• and when an Experience User launches Chat on an Experience site, I want to pre-populate a hidden Pre-Chat field with a Community User's associated Account on the form.
• I then want to use Direct-To-Button routing (https://developer.salesforce.com/docs/atlas.en-us.snapins_web_dev.meta/snapins_web_dev/snapins_web_directtobutton_routing.htm) to send the User to the appropriate Agent, based on Account Team Membership.

How do I add and populate the hidden Pre-Chat field?

I've run into this error after following the steps in this Trailhead Module:
 

I took a look at this solution from the site. (https://developer.salesforce.com/docs/atlas.en-us.snapins_web_dev.meta/snapins_web_dev/snapins_web_populate_prechat.htm)

And I don't know how I can apply it to this Use Case:

• I want to add a hidden Pre-Chat field
• and when an Experience User launches Chat on an Experience site, I want to pre-populate a hidden Pre-Chat field with a Community User's associated Account on the form.
• I then want to use Direct-To-Button routing (https://developer.salesforce.com/docs/atlas.en-us.snapins_web_dev.meta/snapins_web_dev/snapins_web_directtobutton_routing.htm) to send the User to the appropriate Agent, based on Account Team Membership.

How do I add and populate the hidden Pre-Chat field?

Is anyone else having the same issue or is it me doing something wrong? I downloaded the package from here (https://developer.salesforce.com/tools/sfdxcli) and I got the following error:

I've run into this error after following the steps in this Trailhead Module: