绘制VlnPlot小提琴图时报错missing value where TRUE/FALSE needed？

在绘制小提琴图时：

VlnPlot(PBMC, features = c("nFeature_RNA", "nCount_RNA", "percent.mt"), ncol = 3)
报错：
Error in if (all(data[, feature] == data[, feature][1])) { : missing value where TRUE/FALSE needed
已经查看并删除了数据里的NA值，是存在NA值的原因吗？

检查看看PBMC$meta.data里面"nFeature_RNA", "nCount_RNA", "percent.mt"是否都有数据且数据类型无误