Hi Emux,
I found the reason why the elevate theme is failing:
Its the closed="yes" clause for a lot of renderrules - including waterways, forests, wood aso.
We invented this closed="yes" cause there are many multipolygones where the singlen non-closed elements (lines, ways) of these MPs are taged as eg. waterway=river. So the single Elements carry the tags of the relations.
This results in terrible rendered MPs.
Eg. in NewZealand nearly all rivers are tagged this way (automated import) resulting in real huge flooded aeras.
With the closed="yes" clause added to render rules this problem is solved.
So we would have to keep this rule in the theme.
Probably something has changed in the new version of the renderer handling the closed="yes".
Best regards
Christian