overflow problem

[herdinc]

Hello,
First of all i want to thank for the mqtt library. I have run into overflow problem when i want to send data that is bigger than 128. Normally, the payload must be 8-byte. On the other hand, payload counts 9 byte or 10 byte during the data between 128 and 256.
I made same change in the sub-vi (mqttCmdCalculateByteArrayLength.vi ) to solve this problembut it doesnt work.
I have added my changes to the attachment.
before

after