Hi,
When data source pulls 0 records then it never finish or turns red. it will be in yellow only.
As stated above,
1. Test at source side RSA3, if its pulls data its fine.
2. Replicate your data source into bw form ecc and activate(use prorgam - RSDS_DATASOURCE_ACTIVATE_ALL) it.
3. Later you can run your info pack. While running info pack please check at ecc side SM58.
4.Ask basis team about any RFC issues between ecc and bw happens recently.
Thanks