Thanks for getting in touch, Arthur.
We updated integration with Drafts in April: [Hook integration scripts v. 114 now available: updates Notes (for pre 1.5.1 users), Drafts, and Agenda integration - Releases - Hook Productivity Forum
What versions of Hook and Drafts are you using?
Drafts Pro or regular? v. 20.1.14?
could you try doing Copy Markdown Link on a drafts document and sending it over so we can inspect the URL?
Thank you,
Luc