PXFormula的DAC扩展名和自定义字段应该没有问题。仅查看字段属性很难分辨出问题所在。至少，请使用DAC字段声明更新您的代码段，以便更清楚地了解哪些属性属于哪个字段。

PXFormula should have no problems with DAC extensions and custom fields. It's really hard to tell what the issue is by looking only at field attributes. Please, at least, update your code snippet with DAC field declarations, so it becomes more clear what attributes belong to what field.