Problemas com vendas parceladas

[ojulianos]

Usando o exeplo que está na wiki e mesmo com meus próprios valores estou tendo o retorno:

int(53041) string(38) "installment value invalid value: 50.20"

Alguém mais passou pelo mesmo problema?

vou por aqui o log que do que foi enviado ao pagseguro.

email=juliano.sil6%40gmail.com&token=DBE30927666F434B8382CB5C423A08A6&paymentMode=default&receiverEmail=juliano.sil6%40gmail.com¤cy=BRL&reference=ID+do+pedido&paymentMethod=creditCard&creditCardToken=0ee7735666bb435584b31011175a2a1c&installmentQuantity=2&installmentValue=50.20&senderName=JULIANO+DA+SILVA+SILVA&senderAreaCode=48&senderPhone=991345850&senderEmail=teste%40sandbox.pagseguro.com.br&senderHash=6cb9354868713532caa6d6e589469115e110d79de447ea3e0c5a11ab4d1a1401&senderCPF=18865044071&shippingAddressStreet=Rua+Imigrante+S%EF%BF%BDnego&shippingAddressNumber=511&shippingAddressDistrict=Pinheirinho&shippingAddressPostalCode=88805130&shippingAddressCity=Crici%EF%BF%BDma&shippingAddressState=SC&shippingAddressCountry=BRA&itemId1=ID&itemDescription1=Nome+do+Item&itemAmount1=12.14&itemQuantity1=2&itemId2=ID+2&itemDescription2=Nome+do+Item+2&itemAmount2=12.14&itemQuantity2=2&creditCardHolderName=JULIANO+DA+SILVA+SILVA&creditCardHolderAreaCode=48&creditCardHolderPhone=991345850&creditCardHolderCPF=18865044071&creditCardHolderBirthDate=23%2F09%2F1990&billingAddressStreet=Rua+Imigrante+S%EF%BF%BDnego&billingAddressNumber=511&billingAddressDistrict=Pinheirinho&billingAddressPostalCode=88805130&billingAddressCity=Crici%EF%BF%BDma&billingAddressState=SC&billingAddressCountry=BRA

[joelhmetz]

https://www.schoolofnet.com/forum/topico/erro-53041-installment-value-invalid-value-11556