Select list item: List index too large Select list item: Attempt to get item number 2 of a list of length 1: () please help to this code as soon as possible please

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The > 10 bytes check was unnecessarily restrictive, since the Delimiter test was all that was needed.
To avoid a list index overflow, I added a list length test.

If this does not work, add a new Label and use it to show the result of the split.

Also, you are receiving at 1000 ms but transmitting at 500 ms, so you will not keep up with the incoming data. Reverse the situation: Run Clock1 at 200 ms to read faster than you write.