Submitted an update today...
MCC RPG v12-20-2021 (release 3)
[Fixed] Actions not populating for mutation ‘pyrokinesis’ when dropped to Actions tab on char sheet.
[Fixed] Script error when dragging an attack roll from chat window to combat tracker or token target.
[Fixed] NPCs dropped to combat tracker do not roll d16 initiative die when option selected on NPC record.
[Fixed] Combat tracker effect durations decreasing by 2 each round.
[Fixed] ‘Armor Class:’ label truncated in Combat Calc dialog box linked on Main tab of char sheet. Label reverted to ‘Armor:’.
[Fixed] Wrong power table result displays when mutation or program check roll is not a natural 1 (ie, fumble) but total is less than or equal to 1 due to modifiers.
[Fixed] Slash command /funnel not adding weapons to Actions tab.
[Fixed] Slash command /funnel not adjusting AC for armor items.
[Fixed] Script error for birth sign ‘The Backup Disk’ when using slash command /funnel.
[Updated] Missing table error message now includes table name.
[Updated] Duration added to onHover display for mini action buttons.
[Updated] Improved parsing of NPC special properties for resistance, vulnerability, and immunity effects when dropped to combat tracker.
[Updated] Items with type (or subtype) equal to ‘artifact’ are unidentified when dropped from data library to Inventory tab on char sheet.
[Added] Two-weapon fighting and backstab options added to Weapons section of Actions tab.
[Added] Modifier button created for d16 initiative die (when two-handed weapon equipped).
[Added] Actions parsing of results table for custom powers.
[Added] Functionality for two-weapon fighting and backstab according to the DCC core rules.
Nothing crazy, mostly just cleaning things up and making sure the slash command /funnel is doing everything it can. The ruleset does have some DCC features like the d16 initiative die for two-handed weapons, two-weapon fighting rules, and backstab functionality even though these are not technically in the MCC core rules. I assume these are universal game mechanics in the DCC/MCC multiverse.