@Admin, the schema works now fine in case there are different orders or additional or renamed columns in the amount of files in a folder.
If you process the same files in a batch process and write the data in append mode into one file, the file structure is not adapted and entries are added into wrong columns, but with append it is not expected to change the overall columns structures. Maybe it possible to consider the changes you did now (as the from folder reading is a stack and append logic) to the append mode in batch process. Otherwise a hint can be added in documentation that append in batch mode doesn’t change the file structure form first file processed and further files with structure changes might show strange results.
Thanks for your effort to workout the solution for handling the schema issues for the new logic.
If you want the columns to be aligned by folder name on append, then you would have to do a Stack. I don’t think that is likely to change. I will see about adding something into the documentation.
I have an observation, when I open EDT by double click on a .transform file it is processed correctly but the log pane is empty. When I open or drag .transform file into open EDT log pane shows the information. This seems to happen in the actual snapshot but in 2.13, too.
I can reproduce it here. Unfortunately, due to the way that Mac double click events work, this is tricky to debug. I spent an hour or so, but haven’t been able to work out exactly what the issue is. I will make a note and try to come back to it.