I've updated ds9 to the v8.1b2 version but still experience the same problem. Do you have any further ideas about how to fix this?
Besides, I'm using an older OSX (10.11.6) to run imexam on pyraf, since imexam will crash on OSX 10.14.6. But I know through astroconda, one can specify some specific version of software to install (e.g., pip install photutils==0.6 installs version 0.6 instead of the current version 0.7). Do you know if this also works for pyraf and imexam? If so, which version should I choose to not make imexam crash on 10.14.6?
Quote by: fitzFor OSX 10.14.6 you should be using DS9 v8.1b2 (see http://ds9.si.edu/site/Download.html).
In the past a lot of the "pixel subscript out of bounds" problems were related to invalid cursor reads that meant the computed image pixel was outside the size of the raster. This problem has shown up in various versions of DS9, is fixed, and then recurs again later. At the moment it is supposed to be fixed, and since you'll need the v8.1b2 version anyway chances are that installing the latest DS9 will also fix this problem.