How to use ExtendedEntityClass and Implicit Entity Class: fixed in version 14.0

Questions
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1
Open in Wolfram Cloud ↗
2

Submitted a Technical Support ticket for this issue and Wolfram confirmed it as an issue (CASE:5015018):

It does appear that ExtendedEntityClass is not behaving properly with certain grouping/ordering of its results.

3

Issue still exist in version 13.3.

4

Fixed in version 14.0