Generally, if lot property is damaged by a common property water leak, for example, then its the Owners Corporation responsibility to make the damage good again. So your new strata manager is probably right. But there are other considerations. Was the damage small, and you wanted the whole ceiling repainted, instead of having a touch up or a small patch? In that situation, the OC might prefer to patch, or contribute 5% (say) of the cost for the repainting. You should put it to your strata committee that the OC should contribute to the repairs, and see what they say.