Quebec T1P returns

I am preparing a tax return for a client who moved to Quebec in August 2021. It does not appear that a netfile return can be fileeeeed with TaxCycle. I tried Fastneasy (approved by Revenu Quebec) but there seem to be uncorrectable errors and the amount owing is $200 less!
Does anyone know of a software product which works well and is approved which will match TaxCycle’s results?
TIA for any help…Pat

You can file with TaxCycle if you have the TP1 add-on. It’s NetFile approved. It comes with the Complete Suite or you can buy the add-on for $150. See Québec TP1 | TaxCycle and Pricing | TaxCycle