I reported this bug months ago and it’s still happening. It’s the only profession where the NPC crafting orders offered don’t give 3 or 9 crafting points on a given day. Every week for the last several months, my JC has only received 7 crafting points from available NPC orders on the 9 point days. Today (8/12), for the first time I only received 2 total crafting points from NPC orders instead of 3. Please please please fix this!
All my other crafters receive 3 and 9 point days with no exception.
[8/13 - Edit] This happened again today. I only got 2 JC knowledge points from NPC crafting orders instead of 3. PLEASE FIX THIS!
[8/14 - Edit] This happened YET AGAIN today! I only got 2 total JC knowledge points from NPC crafting orders instead of 3. 
Bumping this for visibility.
[8/15] Big surprise, this still hasn’t been fixed. Today I’ll share a summary of my available crafting orders. It was a 9 point day!!! Oh, wait… I only got 6 knowledge points… 
Today’s available crafting orders for me:
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Enduring Bloodstone - Reward(s): Artisan’s Consortium Payout & Crystallized Augment Rune
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Engraved Gemcutter - Reward(s): Apprentice’s Crafting License & Glimmer of Jewelcrafting Knowledge (2 Knowledge Points)
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Masterful Amber - Reward(s): Flicker of Jewelcrafting Knowledge (1 Knowledge Point)
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Ominous Energy Crystal - Reward(s): Flicker of Jewelcrafting Knowledge (1 Knowledge Point)
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Quick Onyx - Reward(s): Artisan’s Consortium Payout & Glimmer of Jewelcrafting Knowledge (2 Knowledge Points)
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Quick Onyx - Reward(s): Artisan’s Consortium Payout & 10 Artisan’s Acuity
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Quick Ruby - Reward(s): Stack of Pentigold Reviews & 10 Artisan’s Acuity
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Ring of Earthen Craftsmanship - Reward(s): Apprentice’s Crafting License & 30 Artisan’s Acuity
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Versatile Sapphire - Reward(s): Stack of Pentigold Reviews & 30 Artisan’s Acuity
So I went from consistently getting 7 points on 9 point days for 2-3 months to getting 2 points on 3 point days every day this week. And now I’m only getting 6 points on 9 point days. I’m assuming by the lack of responses from other players that I’m likely the only player (or at least one of very few) who this is happening to. It’s odd that it has kept going down the more I continue to report this, but I will keep reporting it. (I have screenshots/logs of these).
how close are you to maxed knowledge? the amount of catchup kp goes down as you get more caught up
I know it goes for the weekly quest, but I have some crafters maxed out and the others are close to done, and none of them have gotten reduced kps from daily npc crafting order. Only my JC has. And this started happening 2 months ago, when I was nowhere near max knowledge.