Hi Vero,
Thank you very much for your reply.
When I type the snippet keyword, it is not deleted in these applications.
The snippet is never replaced by the text, and I do not hear an error sound.
I also do not see a red error message in Alfred preferences when these applications are in focus.
Changing the preferences for these applications, including unchecking the "Include SVG Code", as you suggested trying, did not, unfortunately, appear to make any difference.
I have a love/hate relationship with the Adobe applications and do know they have their idiosyncrasies :). I appreciate you taking the time to try and help.
Jason