That do not draw from buildings with tracer functioned everyone times

[hpduwe@…]

What steps will reproduce the problem?

1. Tracer begin
2. Buildings are not drawn
3. another building can be drawn however

What is the expected result?

What happens instead?

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-12-09 17:17:36
Last Changed Author: Don-vip
Revision: 7777
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Relative URL: ^/trunk
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-12-09 18:14:49 +0100 (Tue, 09 Dec 2014)
Last Changed Rev: 7777

Identification: JOSM/1.5 (7777 de) Windows 7 64-Bit
Memory Usage: 247 MB / 247 MB (6 MB allocated, but free)
Java version: 1.7.0_71, Oracle Corporation, Java HotSpot(TM) Client VM
VM arguments: [-Djava.security.manager, -Djava.security.policy=file:C:\Program Files (x86)\Java\jre7\lib\security\javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>\bin, -Djnlpx.origFilenameArg=C:\Users\hpduwe\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\56\1ee8cfb8-5fbcc6fe, -Djnlpx.remove=false, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.splashport=49272, -Djnlp.application.href=https://josm.openstreetmap.de/download/josm.jnlp, -Djnlpx.jvm=<java.home>\bin\javaw.exe, -Djnlpx.vmargs=LURqYXZhLnV0aWwuQXJyYXlzLnVzZUxlZ2FjeU1lcmdlU29ydD10cnVlAC1Eam5scC5hcHBsaWNhdGlvbi5ocmVmPWh0dHBzOi8vam9zbS5vcGVuc3RyZWV0bWFwLmRlL2Rvd25sb2FkL2pvc20uam5scAA=]
Dataset consistency test: No problems found

Plugins:
- FixAddresses (30737)
- HouseNumberTaggingTool (30762)
- Tracer2 (30695)
- buildings_tools (30762)
- merge-overlap (30784)
- osmarender (30738)
- print (30812)
- terracer (30737)

Last errors/warnings:
- E: java.lang.IllegalArgumentException: Primitive to delete must be in a dataset
- E: java.lang.IllegalArgumentException: Primitive to delete must be in a dataset
- E: java.lang.IllegalArgumentException: Primitive to delete must be in a dataset
- E: java.lang.IllegalArgumentException: Primitive to delete must be in a dataset
- E: java.lang.IllegalArgumentException: Primitive to delete must be in a dataset

java.lang.IllegalArgumentException: Primitive to delete must be in a dataset
	at org.openstreetmap.josm.command.DeleteCommand.checkConsistency(DeleteCommand.java:115)
	at org.openstreetmap.josm.command.DeleteCommand.<init>(DeleteCommand.java:66)
	at org.openstreetmap.josm.command.DeleteCommand.<init>(DeleteCommand.java:76)
	at org.openstreetmap.josm.plugins.tracer2.ConnectWays.mergeNodes(ConnectWays.java:292)
	at org.openstreetmap.josm.plugins.tracer2.ConnectWays.connectTo(ConnectWays.java:251)
	at org.openstreetmap.josm.plugins.tracer2.ConnectWays.connect(ConnectWays.java:195)
	at org.openstreetmap.josm.plugins.tracer2.TracerAction.traceSync(TracerAction.java:330)
	at org.openstreetmap.josm.plugins.tracer2.TracerAction.access$000(TracerAction.java:62)
	at org.openstreetmap.josm.plugins.tracer2.TracerAction$1.realRun(TracerAction.java:174)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:93)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:161)
	at java.lang.Thread.run(Unknown Source)