There were duplicate row identifiers in the specified ranked list. One id was arbitarilly choosen. Details are below.
Generally, this is OK, but if you want to avoid this automagic, edit your ranked list so that all row ids are unique
# of row ids in original dataset: 18643
# of row UNIQUE ids in original dataset: 18631
# The duplicates were
PIK3R2
RBL1
CKS1B
LTB4R2
CCDC177
FAM47E
IDS
ZNF177
SDHD
TMEM236
GOLGA7B
CRIP1