Just a comment for consideration:
My data is in Hg38 and used FUMA's new feature of mapping in Hg38 coordinates. I've supplied a column in the rsID parameter to keep track of the variant identifiers (not in rs# format) in my original data (Hg38) to merge with my other result files in Hg38.
This new version of FUMA replaces my original identifiers with dbSNP "rs" identifiers and positions in the output are in Hg19, thus I've lost all mapping to my original data. In the past, FUMA kept the original identifiers if a column was supplied to the rsID parameter. It would be useful to have the ability to keep the original identifiers.