Hmm. Looking at our logs, we got unfollows (ie Undo of Follow activities) from your AP actor for both of those users. Over the last 30d, times all UTC:

for atila.bsky.social: 2026-05-01 04:07:00 Undo 2026-05-07 19:45:17 Follow

for danilokleber.bsky.social: 2026-04-20 19:47:42 Follow 2026-05-01 04:09:05 Undo 2026-05-16 17:04:04 Follow 2026-05-16 20:48:13 Undo