🔧 FIXED

• Technique books from the sect shop had no way to be learned: the item detail popup only offered "Sell", and the cultivation page's technique selector only shows techniques you already know — so a purchased book just sat in the inventory. A Learn button has been added to the item detail popup. Books you already bought can be learned right after updating; after learning, switch to the new technique from the cultivation page as usual.
• Clicking "Comprehend" on saves written by previous versions threw an error and had no effect. Old saves are repaired automatically when loaded (the affected cooldown resets once — no progress is lost).

❓ Technique vs. Skill, a quick reminder

Techniques (功法) are chosen on the cultivation page and boost your cultivation — they are available from the start. Skills (神通) are unlocked by a main story quest after breaking through to the Qi Refining stage; the Skills page being locked before that is intended.