AI Translation skips Portuguese (pt) locale - post translated to all languages except Portuguese

Update: the issue is not specific to Portuguese. With 3 locales (EN, RU, PT), any locale can be randomly skipped — sometimes RU, sometimes PT. Also, title and body are translated independently and inconsistently — title may be translated but body skipped, or vice versa. Tested with Mistral Small, Mistral Large, and GPT gpt mini. The problem persists across all models.
All posts are published in English (site default locale is English). The translation to other locales is inconsist ent and random regardless of post content or length.​​​​​​​​​​​​​​​​I can’t figure out what’s causing this or why it’s happening