Just a quick observation: The node names in the palette are written in lowercase. This convention is also followed when adding nodes to the flow, except for the split node. In the flow, the initial label of the split node starts with an uppercase 'S'. 
Yeah - the text got changed in the catalogue for use elsewhere, without spotting it affected the node label.
This was spotted in the beta, but an issue didn't get raised to fix it, so was missed again.
An issue was raised this morning to capture it: Split node label capitalized since NR 4 · Issue #4832 · node-red/node-red · GitHub
That's how things go... been there with our software 
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