So, I chose to cultivate my relationship with Borges, and so developed my Education skill up to 90 points. For some reason, though, the checkpoint where 90 is required shows failure and claims I only have 61. I do have 90 though. Is this a known bug? Does anyone know how to fix it?

I don't think that's possible, are you sure the value is the right one? otherwise if you can send me the savegame I can take a look

Thanks for the quick answer! I tried again from an earlier save point and even developed Education to 100 before going into that scene. And it shows as if my level is 62!

I'd appreciate it if you could take a look. How do I send the savegame?

Check here: http://www.winterwolves.net/viewtopic.php?f=33&t=2971

You don't need 90 Education, you need 90 knowledge. Knowledge is Awareness+Education and then divided by 2. So you need both Awareness AND Education at 90 to get 90 Knowledge (Or one at 100 and the other at 80).

Ah wait, no need to send savegame. You need 90 in KNOWLEDGE, not Education, to get the bonus CG

Ah, you're right! Can't believe I didn't notice that... Thank you!