First of all DataRestAPI is now arc46 squid. The marketing guys said they couldn’t really work with DataRestAPI 
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As we are currently in the process of expanding the library of predefined configurations, we have stumbled upon some very ‘corner’ cases. These wouldn’t have been noticed by very many users nor would they have been more than a minor annoyance, but we we take our claim to excellence seriously and are currently completing the configuration library and fixing any corner-cases we encounter on the way.
Long story short: New ETA is August /September 2024.