An interferometric imaging package
The bug has been successfully resolved. While it lingers in older IMAGER versions, it has been entirely eradicated in the latest releases.
Bug corrected in the distributed version 4.0 (and beyond):
PIPELINE /MODE SURVEY was not working properly when strong lines were present in spectral window, because line subtracting was improperly done, and contaminated the full bandwidth.
Note that the PIPELINE /MODE ALL with NO Catalog was similarly affected, whereas other modes (including PIPELINE /MODE ALL with a Catalog) were not affected by this issue.
Bug corrected in the distributed version 4.0 (and beyond):
Description: PIPELINE crashes (in Survey mode): Continuum image could not be created.
This was due to incorrect channel flagging when a strong/broad line is present close to the edge of a frequency band. In some cases, too many (if not all) channels were flagged, resulting in no continuum channels.
Recommandation: you may test first the line identification with the UV_PREVIEW command before starting the imaging process with the PIPELINE (adjusting TAPER, SMOOTH and CLIP variables may help, if the problem persists in exotic cases).