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I use the modern version (v810) and on this the LMT to LAT are applied correctly. The download is available at the link below:
https://sites.google.com/site/pymorinus7/

The last traditional version is v620, released by Robert Nagy:
https://sites.google.com/site/tradmorinus/morinus

Even if I don't know in detail the codes of this part of the programs, in particular those of the traditional version, I seem to remember that in the two versions they were identical. Are you sure you have entered the correct data? In doing the verification on the modern version, I was wrong twice ...

I can't check now. I'll try within this week.