I have a screenshot but am unable to share due to link policy.
Expected:
Arm triggers on Tarcegosa which then grants whelp triggers in combat.
Tarcegosa keeps all whelp smuggler triggers into next turn.
Actual:
Arm buff triggers on Tarcegosa which then grants whelp triggers in combat.
Tarcegosa does not keep whelp smuggler triggers into next turn.
Reason for bug report:
Tarcegosa specifically states all enhancements from combat are kept permamently.