Hi gchen,
Thank you for this bild. Here the complete Output, I’m still missing a hint, why the “XyZ Kunden” is excluded.
Sorry for the mis-format, of the text, I havent fount the code-Tag !? Another Try 
2017-03-29 15:58:12.953 INFO STORAGE_SET Storage set to b2://bu-server-XyZ
2017-03-29 15:58:12.953 DEBUG PASSWORD_ENV_VAR Reading the environment variable DUPLICACY_B2_ID
2017-03-29 15:58:13.064 DEBUG PASSWORD_ENV_VAR Reading the environment variable DUPLICACY_B2_KEY
2017-03-29 15:58:14.795 DEBUG PASSWORD_ENV_VAR Reading the environment variable DUPLICACY_PASSWORD
2017-03-29 15:58:16.316 INFO CONFIG_INFO Compression level: 100
2017-03-29 15:58:16.316 INFO CONFIG_INFO Average chunk size: 4194304
2017-03-29 15:58:16.316 INFO CONFIG_INFO Maximum chunk size: 16777216
2017-03-29 15:58:16.316 INFO CONFIG_INFO Minimum chunk size: 1048576
2017-03-29 15:58:16.316 INFO CONFIG_INFO Chunk seed: 6b990f0caa3f2222a959f75d006fdfa8fbcc1448985b28d4bbe7a9782cf66fbf
2017-03-29 15:58:16.317 DEBUG BACKUP_PARAMETERS top: /Volumes/BackUp, quick: true, tag:
2017-03-29 15:58:16.317 TRACE SNAPSHOT_DOWNLOAD_LATEST Downloading latest revision for snapshot XyZ-serverbackup-root-BackUp
2017-03-29 15:58:16.317 TRACE SNAPSHOT_LIST_REVISIONS Listing revisions for snapshot XyZ-serverbackup-root-BackUp
2017-03-29 15:58:16.697 DEBUG DOWNLOAD_FILE_CACHE Loaded file snapshots/XyZ-serverbackup-root-BackUp/2 from the snapshot cache
2017-03-29 15:58:16.847 DEBUG CHUNK_CACHE Chunk 80762390e77e9c85d7a84149d295c28f8472dd76b93af40a0727b82f81548004 has been loaded from the snapshot cache
SNIP 1120 lines of DEBUG CHUNK_CACHE Chunk
2017-03-29 16:09:17.108 DEBUG CHUNK_CACHE Chunk 06f593fd31ca06487b211ccb8ca1690a17dbc71d93c99f0b221bf47aafb76b46 has been loaded from the snapshot cache
2017-03-29 16:09:40.530 INFO BACKUP_START Last backup at revision 2 found
2017-03-29 16:09:40.530 INFO BACKUP_INDEXING Indexing /Volumes/BackUp
2017-03-29 16:09:40.619 INFO SNAPSHOT_FILTER Loaded 12 include/exclude pattern(s)
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -_CCC Archives/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -_CCC SafetyNet/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -HR.Scan/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -IT/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -Library/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -OD_BU/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -Transport/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -PIS/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -.Spotlight-V100/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -.fseventsd/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -.Trashes/
2017-03-29 16:09:40.620 TRACE SNAPSHOT_PATTERN Pattern: -.TemporaryItems/
2017-03-29 16:09:40.620 DEBUG LIST_ENTRIES Listing
2017-03-29 16:09:41.633 DEBUG LIST_EXCLUDE .Spotlight-V100/ is excluded
2017-03-29 16:09:41.633 DEBUG LIST_EXCLUDE .TemporaryItems/ is excluded
2017-03-29 16:09:41.633 DEBUG LIST_EXCLUDE .Trashes/ is excluded
2017-03-29 16:09:41.633 DEBUG LIST_EXCLUDE .fseventsd/ is excluded
2017-03-29 16:09:41.633 DEBUG LIST_EXCLUDE HR.Scan/ is excluded
2017-03-29 16:09:41.633 DEBUG LIST_EXCLUDE IT/ is excluded
2017-03-29 16:09:41.676 DEBUG LIST_EXCLUDE Library/ is excluded
2017-03-29 16:09:41.676 DEBUG LIST_EXCLUDE OD_BU/ is excluded
2017-03-29 16:09:41.676 DEBUG LIST_EXCLUDE PIS/ is excluded
2017-03-29 16:09:41.676 DEBUG LIST_EXCLUDE Transport/ is excluded
2017-03-29 16:09:41.676 DEBUG LIST_EXCLUDE _CCC Archives/ is excluded
2017-03-29 16:09:41.676 DEBUG LIST_EXCLUDE _CCC SafetyNet/ is excluded
2017-03-29 16:09:41.676 DEBUG LIST_ENTRIES Listing XyZ Agentur/
2017-03-29 16:09:41.961 DEBUG LIST_ENTRIES Listing XyZ Agentur/.TemporaryItems/
2017-03-29 16:09:42.034 DEBUG LIST_ENTRIES Listing XyZ Agentur/.TemporaryItems/folders.1001/
2017-03-29 16:09:42.057 DEBUG LIST_ENTRIES Listing XyZ Agentur/.TemporaryItems/folders.1005/
SNIP 1000000 Lines of DEBUG LIST_ENTRIES Listing
2017-03-29 18:46:07.718 DEBUG LIST_ENTRIES Listing XyZ Kunden/VOS/01 Jobs/2013/Allgemein/1HJ/1HJ_Shooting_SuÃàdafrika/XyZ_TomoBrejc_SA_2012/XyZ_LowRes/City_Selection/03_Online
2017-03-29 18:46:07.902 DEBUG LIST_ENTRIES Listing XyZ Kunden/VOS/01 Jobs/2013/Allgemein/1HJ/1HJ_Shooting_SuÃàdafrika/XyZ_TomoBrejc_SA_2012/XyZ_LowRes/City_Selection/POS
2017-03-29 18:46:08.278 DEBUG LIST_ENTRIES Listing XyZ Kunden/VOS/01 Jobs/2013/Allgemein/1HJ/1HJ_Shooting_SuÃàdafrika/XyZ_TomoBrejc_SA_2012/XyZ_LowRes/Kids_LowRes
2017-03-29 18:49:18.531 INFO STORAGE_SET Storage set to b2://bu-server-XyZ
2017-03-29 18:49:18.531 DEBUG PASSWORD_ENV_VAR Reading the environment variable DUPLICACY_B2_ID
2017-03-29 18:49:18.731 DEBUG PASSWORD_ENV_VAR Reading the environment variable DUPLICACY_B2_KEY
2017-03-29 18:49:20.549 DEBUG PASSWORD_ENV_VAR Reading the environment variable DUPLICACY_PASSWORD
2017-03-29 18:49:21.460 INFO CONFIG_INFO Compression level: 100
2017-03-29 18:49:21.460 INFO CONFIG_INFO Average chunk size: 4194304
2017-03-29 18:49:21.460 INFO CONFIG_INFO Maximum chunk size: 16777216
2017-03-29 18:49:21.460 INFO CONFIG_INFO Minimum chunk size: 1048576
2017-03-29 18:49:21.460 INFO CONFIG_INFO Chunk seed: 6b990f0caa3f2222a959f75d006fdfa8fbcc1448985b28d4bbe7a9782cf66fbf
2017-03-29 18:49:21.596 DEBUG DELETE_PARAMETERS id: , revisions: [], tags: [], retentions: [0:180 7:30 1:3], exhaustive: false, exclusive: false, dryrun: false, deleteOnly: false, collectOnly: false
2017-03-29 18:49:21.669 INFO RETENTION_POLICY Keep no snapshots older than 180 days
2017-03-29 18:49:21.669 INFO RETENTION_POLICY Keep 1 snapshot every 7 day(s) if older than 30 day(s)
2017-03-29 18:49:21.669 INFO RETENTION_POLICY Keep 1 snapshot every 1 day(s) if older than 3 day(s)
2017-03-29 18:49:21.669 TRACE SNAPSHOT_LIST_IDS Listing all snapshot ids
2017-03-29 18:49:21.827 TRACE SNAPSHOT_LIST_REVISIONS Listing revisions for snapshot XyZ-serverbackup-admin-BackUp
2017-03-29 18:49:22.216 DEBUG DOWNLOAD_FILE_CACHE Loaded file snapshots/XyZ-serverbackup-admin-BackUp/1 from the snapshot cache
2017-03-29 18:49:22.216 TRACE SNAPSHOT_LIST_REVISIONS Listing revisions for snapshot XyZ-serverbackup-root-BackUp
2017-03-29 18:49:22.582 DEBUG DOWNLOAD_FILE_CACHE Loaded file snapshots/XyZ-serverbackup-root-BackUp/1 from the snapshot cache
2017-03-29 18:49:22.782 DEBUG DOWNLOAD_FILE_CACHE Loaded file snapshots/XyZ-serverbackup-root-BackUp/2 from the snapshot cache
2017-03-29 18:49:22.785 INFO SNAPSHOT_NONE No snapshot to delete