I uploaded a version fixed for 1.1 https://mods.factorio.com/mod/TradeRouteOverhaul-1-1 , it just needed 2 fixes in research.lua:
- remove the auto-character-logistic-trash-slots entry
- change icon_size for all technologies to 256

Oh actually looks like the tag generation needs to be fixed too

Oh actually nevermind it looks like it just doesn't like to load the tags on a 1.1 map after loading from a 1.0 save

only in the case where I had placed a radar and it hadn't finished revealing the chunks around it

actually it's just a layer of chunks outside whatever's been revealed by radars, which must have been partially loaded in the original save. Further chunks load the tags fine