The Mana Pools National Park is 2700 nodes

[chris@…]

What steps will reproduce the problem?

1. How do you upload this?
2. I have tried to simplify the nodes
3. This boundary is exact and I have taken the data from the gazetted Parks and Wildlife act

What is the expected result?

What happens instead?

Please provide any additional information below. Attach a screenshot if possible.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-04-28 12:48:16 +0200 (Thu, 28 Apr 2016)
Build-Date:2016-04-28 10:51:36
Revision:10161
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10161 en) Windows 7 32-Bit
Memory Usage: 208 MB / 989 MB (35 MB allocated, but free)
Java version: 1.8.0_91-b14, Oracle Corporation, Java HotSpot(TM) Client VM
Dataset consistency test: No problems found

Plugins:
- RoadSigns (31895)
- SeaMapEditor (31772)
- apache-commons (31895)
- measurement (31895)
- pdfimport (32019)
- print (32144)
- turnrestrictions (31895)
- waypoint_search (31772)

Tagging presets:
- http://dev.openseamap.org/josm/Presets_Hafen.xml
- http://dev.openseamap.org/josm/Presets_Sport.xml
- http://www.country-linedance.de/daten/Archaeologie-de.zip
- https://josm.openstreetmap.de/josmfile?page=Presets/Animal_facilities&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/BicycleJunction&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/BuildingPreset&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Camp_site_extends&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Communication_Towers&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Historic_Stone&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Historical_Objects&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Leaftype&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/MobilePhoneBaseStations&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/MountainbikeTrails&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Mountains&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/NewParkingFeatures&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/PublicTransportOneClick&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Towers&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Traffic_signs&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Trees&zip=1
- https://raw.github.com/molysgaard/OAM-JOSM/master/oam-presets.xml
- https://raw.githubusercontent.com/OpenSeaMap/josm/master/Presets_Sport.xml
- https://raw.githubusercontent.com/species/josm-preset-transformap/master/transformap.xml
- https://raw.githubusercontent.com/species/josm-preset-wheelchair/master/sidewalks_kerbs.xml

Map paint styles:
- http://www.im.pwr.wroc.pl/~polowcz/osm/AreaHighway/AreaHighway.zip
- https://josm.openstreetmap.de/josmfile?page=Styles/Landcover&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Schools&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Surface&style&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Traffic_signs&zip=1

Last errors/warnings:
- W: Initializing map style https://josm.openstreetmap.de/josmfile?page=Styles/Traffic_signs&zip=1 completed in 0 ms (2 errors, 0 warnings)
- W: Unable to convert property casing-color to type class java.awt.Color: found #66066 of type class java.lang.String!
- W: Unable to convert property casing-color to type class java.awt.Color: found #66066 of type class java.lang.String!
- W: Unable to convert property casing-color to type class java.awt.Color: found #66066 of type class java.lang.String!
- W: Unable to convert property casing-color to type class java.awt.Color: found #66066 of type class java.lang.String!

[stoecker]

Large ways need to be split. Usually either as boundary or multipolygon relation. Your long way is already part of a relation so that's probably easy.

Anyway this is not the right place for mapping discussions, ask in the forums and mailingslists or other mappers how to solve your issue.