There was an Xcitium fix for this a few weeks ago but one hasn’t dropped for Comodo itself yet as it’s more targeted towards EDR. Hopefully it will get pushed through to Comodo consumer products soon.
Your best options are to Block such an unknown file rather than running it in containment in the first place. There is the option of tweaking HIPS as described in DecimaTech’s Post for at least this specific bypass. Cruelsister advises disabling UAC in her Bypassing a bypass video. and Comodo UAC
Anyway, just not downloading dodgy files and checking them with VirusTotal and/or Comodo Valkyrie and blocking an untrusted file at least initially is the best prevention.
Cruelsister makes a good point in that topic
Anyway, use what works for you, this type of attack is rare and more targeted towards businesses which is why Xcitium go the fix first.