Extra lensed source image appearing in LensingPlots.rgb_image

[aesar77]

Hi,

When I compare the positions of source image components given by extended sources function with the lens simulation image from LensingPlots.rgb_image, I realise there is an additional source image that was created in the image. Here is an example below. the first plot marks the positions of the cluster lens components by lenstronomy_kwargs, and source positions by extended_sources. There are 3 source images. However, in the second image, there appears a fourth source image around ~(300, 130). Is there any explanation for this?

[sibirrer]

Hi @aesar77, thank you for the issue!
A few things that could have happened:

1. The non-linear image position solver for the point sources do not cover this position (what is the frame of the positional solver relative to the pixel grid?)
2. The center of the source is not imaged there but only a slightly offset (but still bright) part is imaged there.