Hi @sebbonnet ,
Thanks for opening up this issue, welcome to the Kong community.
What Kong version is this? We have recently fixed an issue that sounds like the same as you are facing; check out [backport -> release/3.6.x] fix(pluginserver): ensure a change to plugin config takes effect by team-gateway-bot · Pull Request #12729 · Kong/kong · GitHub. It has been merged and will go out in 3.7.0 (or 3.6.2 if we release one).
If that does not help, please consider opening up an issue in our Git repos GitHub - Kong/kong: 🦍 The Cloud-Native API Gateway and AI Gateway. or even GitHub - Kong/go-pdk: Write Kong plugins in Go! 🦍.
Thanks and happy Konging! 