what happens if you use tags_Genie_ArchPath instead of tags.Adobe.ArchPath ? By default any field keys which contain dot in the name are being "cleaned":
CLEAN_KEYS = [true|false]
* NOTE: This setting is only valid for search-time field extractions.
* Optional. Controls whether Splunk software "cleans" the keys (field names) it
extracts at search time. "Key cleaning" is the practice of replacing any
non-alphanumeric characters (characters other than those falling between the
a-z, A-Z, or 0-9 ranges) in field names with underscores, as well as the
stripping of leading underscores and 0-9 characters from field names.
* Add CLEAN_KEYS = false to your transform if you need to extract field
names that include non-alphanumeric characters, or which begin with
underscores or 0-9 characters.
* Default: true