So what happens if you REMOVE both client-type and max-packet-size? It seems to imply that you've made an issue out of a non-issue and brought the problem on yourself due to an improper use of settings.
For (at least) one combination of those settings, you're SUPPOSED to be opting in to Core_15.
Things still wonky after Fah-web outage 2 weeks ago-Solved
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