Noticing quite a few people mentioning cagri losing effectiveness over time lately. Rather than assuming bad batches, I suspect a lot of these cases trace back to underdosing, especially when cagrilintide's being used entirely on its own rather than paired with another weight-loss injection.
In the standalone cagri clinical trial, the highest dose tested topped out at 4.5mg. Can't tell for certain from what you wrote, but seems like you may be running the compound solo. If side effects stay manageable, could be worth working your amount higher.