That one fails as well as 10 is no longer supported by Lambda.
What worked was to deploy splunk-logging from "Use blueprint" - that one is NodeJS 12.x and is supported. I spent a few hours getting to this solution. I have to say that there are a lot of confusing options, some of them are out of date.
If you can remove the out-of-date blueprints for Node 8+10 from Lambda's templates, it will help avoid some of this confusion.
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