The community member has a question about changing proxies during a Puppeteer process. They want to start with one proxy (proxy1) and then switch to another (proxy2) at some point. The comments suggest that this is not currently supported by the crawlee library, and the community member is trying to create a function to achieve this. However, they mention that it gets "messed up" when the concurrency is higher than 1. There is no explicitly marked answer in the comments.
This is not supported by crawlee right now, so the only think that comes to mind is to try to change some inner property of the crawler during the run. Did you try to change proxy configuration on crawler object?