It sounds as though, when the sill failed over time it put an arch into the joists as they were bent over the middle support columns. When you raised the damaged sill section, the arch remained and the joists lifted free of the supports. If the middle section has begun to lower, the other sections may follow.
If you want to minimize the pressure on the other side of the foundation, you might want to temporarily install another series of jacks in the middle to carry the center weight. Over time you can lower the middle section so it rests on the support beam. If it doesn't relax back, you can always install permanent shims so the weight is evenly distributed.
Who knows how long, if ever, it will assume it's original position.
Ron
If you want to minimize the pressure on the other side of the foundation, you might want to temporarily install another series of jacks in the middle to carry the center weight. Over time you can lower the middle section so it rests on the support beam. If it doesn't relax back, you can always install permanent shims so the weight is evenly distributed.
Who knows how long, if ever, it will assume it's original position.
Ron