Hi @xibble
Thanks for reaching out about the Split Pay Plugin.
There’s a variety of reasons why that may have occurred.
Mainly, it would happen if your Stripe Payout Balance was not sufficient enough to cover the Transfer amount at the time of the transaction.
What payment method did you use?
If credit card, which has a 2.9% + 0.30c fee, it would make sense your transaction failed. You may have had another small amount from a previous transaction left in your Payout Balance, which would allow the 99% to work the second time you tried it.
Basically, 100% transfer amount will only work if you want to be left covering the Stripe fees, which in some cases if your Payout Balance is empty or too low, the transaction will fail.
Looking forward to hearing from you.