Thanks for your suggestion @Thanatomanic. I am aware of that. I feel you have not tried my profile on negative with both the versions. My specific question was, that prior to RawTherapee_dev_release_5.8-3124/3126 every thing was working fine with my setup. RawTherapee_dev_release_5.8-3120 still works pretty fine, with the same initial basic profile. Has some bug creeped in within a week or so. You squash one bug and two generate like mythological Hydra. I have got my full respect for developers for their tireless work on this great software. Also I know that they are under tremendous pressure to get a regular version released at the earliest. I will keep on trying the new dev versions for this bug or whatever. Till then I will keep on using 5.8-3120. I can’t afford to open my edited negatives for refinements or to export them through these new versions as the edits go haywire and then I have to start over again.
Why am I using Rawtherapee as this does not happen in ART, Darktable, Lightroom or any other raw developer software which I have tried?
Well that is a different question altogether and for another time.
Too little time, and too many negatives to edit