electrical - Dual Function AFCI/GFCI breakers trip under any load - Home Improvement Stack Exchange

This is a new subpanel in a workshop and the electrician told me because it's new all circuits have to be AFCI and because it's an outbuilding it should be GFCI too. So, I purchased these breakers

circuit breaker - Swapping wires in electrical panel to move outlets to different phase of service. Is this safe? - Home Improvement Stack Exchange

Square D Homeline 20-amp/20-amp 1-Pole Tandem Circuit Breaker in the Circuit Breakers department at

Klein Tools RT310 Outlet Tester, AFCI and GFCI Receptacle Tester for North American AC Electrical Outlets

electrical - What are the versions of AFCI? - Home Improvement Stack Exchange

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Square D Homeline 2-20 Amp Single-Pole Tandem Circuit Breaker HOMT2020CP - The Home Depot

electrical - Dual Function AFCI/GFCI breakers trip under any load - Home Improvement Stack Exchange

electrical - How to fix bad contact on busbar? - Home Improvement Stack Exchange

The Square D by Schneider Electric Homeline 20 Amp One-Pole Combination Arc-Fault Circuit Interrupting (CAFCI) Circuit Breaker is for use to help

Homeline 20 Amp Single-Pole Combination Arc Fault Circuit Breaker (6-Pack)

Eaton Type BR 15-Amp 2-Pole Tandem Circuit Breaker in the Circuit Breakers department at

Eaton Type BR 15-Amp 1-Pole Dual Function AFCI/GFCI Plug-On Neutral Circuit Breaker in the Circuit Breakers department at