I’ve tested the changes made as per GEDCOM export isn’t taking birth order of children or date order of marriages into consideration? and mostly it is a big improvement. However, a new bug seems to have come into the export process.
There is a problem with the way twins are represented in the GEDCOM. When imported into Reunion each of the twins is there, with their parents, but they don’t both appear on the family group and don’t appear on exported descendant charts as they did previously. I’ve checked tis by changing the date of birth of one of the twins by 1 day in RF, then exporting another GEDCOM and that file imports and displays normally.
In one file I have several sets of twins and they all have the same problem.