How to solve recursive build when using obs to build debian 10?

Hi, I am using obs to build debian 10 for mipe64el. I have built about 5000 packages. Currently ,I have some problems. I used "rebuild=local" in the meta configuration file. Because when this configuration item is not used, the building seems to be unable to end, but I see from <user-guild> that using this configuration item will cause the built system to be unstable. Does anyone know how to solve it? Thank you！