ERROR: File usr/sap/TRX/ZZZ.csv does not exist / cannot be read.

Hello Experts

I'm having an error in the High Volumen Segmentatioin for File Upload functionality.

I've configured my data source

I also have my .csv file uploaded

I´ve run the program

CRM_MKTTG_FDS_LOAD_FILE_UI

and the job finishes correctly

however when I look at the trace file on the SES_ADMIN

I always gethe the message that tie file does not exist / cannot be read. I´ve tried having less than 25 characters as was mentioned on thread  TREX File upload not working in High volume segmentation but I still get the same messaje. Also I´ve looked in the crmd_mktds to see if by chance the attriute list was created, but it was not.

Anyone know what could be wrong or if Im missing anything else so that the file can be found / read?