openfietsmap_lite_gmapsupp.zip not being created

I’m trying to merge 3 tiles to make a map for my Garmin 520.

In the past I have used the option “Routable Bicycle (Openfietsmap Lite)” which outputs openfietsmap_lite_gmapsupp.zip. This file is not being created now

Please mail your issue to Lambertus, he probably will not read it here.