Creating a collection only imports some columns

[morall]

I am creating a collection from a common data source

ClearCollect({
sampleCollection,
Filter('Database', ..some filters)
})

However its dropping a few columns. Any particular reason why it would do this? 

[KyleJ]

Go to your settings, and under advanced settings, you may see an experimental feature being applied. 

If you are not yet using these columns in your app, They could be getting dropped off for efficiency. Unselect this option to ensure all columns are carried over. 

Please mark as a solution if that has helped you 🙂 

[morall]

I am using them in my app. Would it be different in "development mode" vs production?

[KyleJ]

Dev mode vs prod shouldn't matter. 
If you use ShowColumns, and select the columns that are missing ,do they appear? So something like...

Filter(ShowColumns(Datasource,Column1,Column2,),FilterExpressions)