Probably not that helpful because I tried most of them before posting here: also editing in Map Composer.

My basic command line is :

.\GroundTruth makemap --osm=xxxx.osm --rules=Rules\xxxxRules.txt --mi=97010000 
-fc=2 --mapname="xxxx" --op=Map_xxx -param=Transparent:Y 2>xxxx.error.log

I also tried it with changing the product code.

As far as I can see the problem arises with a conflict with #_add.reg files. I’m sure I’m missing something basic, but any help appreciated.

SK53