starting from Simplifier 8.1 we switched some implementations in the platform which result in the problem you’re currently facing. When using JSON Objects in an ECMA Script environment (e.g. inside a scriptblock of an application) the ordering of properties stays the same / is perserved.
Simplifier as a platform is not an ECMA application and therefor the results are not part of an ECMA Script environment. This leads to the order of properties not being fixed.
If a specific order of columns / properties is necessary you unfortunately now have to handle this manually.
Sorry for the inconvenience, let us know if you have more questions / need any more support.
