Button "Badly formatted buffer"

[Hardyhove]

Hallo.
I'm new here as you will recognise by my question.
In my project a slider value shall be confirmed by pushing a button before it is sent to the PLC.

First of all: It works!

But using a debug node an error message occurs. Why? And why is the function not compromised by that error?

Adjustment in the button node

Thanks for making me a bit less stupid.

[Colin]

Which node is generating that error? Click on the node id above the error (9149....) and it will highlight the node. Then add a debug node showing what is going into that node to see what you are feeding it.