Validation don't show flag at overlapping buildings

[watergeus]

What steps will reproduce the problem?

1. a time ago overlapping buildings shows up at validation. Now not.
2. run JOSM ver 14066

What is the expected result? overlapping building to be reported by flagging

What happens instead? nothing

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

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-07-29 00:41:59 +0200 (Sun, 29 Jul 2018)
Build-Date:2018-07-29 01:32:17
Revision:14066
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14066 en) Windows 10 64-Bit
OS Build number: Windows 10 Enterprise 1803 (17134)
Memory Usage: 1208 MB / 1820 MB (258 MB allocated, but free)
Java version: 1.8.0_181-b13, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1680x1050, \Display1 1680x1050
Maximum Screen Size: 1680x1050

Plugins:
+ FastDraw (34389)
+ ImproveOsm (138)
+ ShapeTools (1230)
+ SimplifyArea (34109)
+ auto_tools (1529260859)
+ buildings_tools (34212)
+ changeset-viewer (15)
+ continuosDownload (1530471163)
+ ejml (34389)
+ geochat (34389)
+ geojson (84)
+ geotools (34125)
+ gson (34389)
+ imagery_offset_db (34370)
+ jna (34389)
+ jogl (1.2.1)
+ jts (34206)
+ log4j (34038)
+ mapathoner (v0.5.13)
+ markseen (7)
+ merge-overlap (34389)
+ reltoolbox (34346)
+ reverter (34271)
+ scripting (30785)
+ terracer (34109)
+ todo (30305)
+ tofix (479)
+ touchscreenhelper (34109)
+ turnrestrictions (34129)
+ utilsplugin2 (34389)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/HotNepal&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Quick-highways&zip=1

Map paint styles:
+ https://github.com/MissingMaps/josm_styles/archive/master.zip
- https://josm.openstreetmap.de/josmfile?page=Styles/Fixme&zip=1
+ https://github.com/MarkCupitt/HOT-Osm-Validation/blob/master/HOT-Validate.mapcss
- https://github.com/hotosm/HDM-JOSM-style/archive/master.zip
- %UserProfile%\Desktop\JOSM\HOT-Osm-Validation-master.zip
- %UserProfile%\Desktop\JOSM\Styles_Highway_Nodes.zip
+ https://github.com/osmlab/appledata/archive/josm_paint_inline_validation.zip

Last errors/warnings:
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: java.net.BindException: Address already in use: connect
- W: Proposed rect has such extreme aspect ratio that it would be zero-width at preferredZoom

[fra]

sample after validation.