The mosaic branches that have blossomed once or twice have become old and the colors are gray and taupe. Began to harden, that is, lignification. Generally, it will not bloom again in the future. In order to have flowers every year, old branches must be pruned year by year in a planned way.
Keep the strongest branch and do not hesitate to delete other branches. Don't feel bad. Be careful. If you don't cut it off, you will get fat, and there will be fewer or no flowers next year.
Your family suddenly bloomed, mostly because of frequent pruning in recent years. After flowering, the old films don't bloom very much. After flowering, trim the old parts and keep other old parts.