Below from Electrical Safety Authority (Canada)
The issue of nuisance tripping has caused frustration for contractors and homeowners alike. And addressing it can be costly and time-intensive for contractors. ESA and Electro Federation Canada (EFC) want to help fix that. When you are made aware of an incident where an AFCI has experienced a nuisance trip please report it directly to EFC.
To report an AFCI nuisance tripping visit: www.esasafe.com/contractors/resources/afci
Please include all required information and email it to: firstname.lastname@example.org with the subject line “AFCI tripping.”