Yup, I got the same results with both 5.6.6 and 6.0.0

I believe I deleted my original post by accident so I'll just leave a repost of the bug for the developers here

WireShare version 6.0.0
Java version 1.8.0_261 from Oracle Corporation
Windows 10 v. 10.0 on x86
Free/total memory: 5728616/34959360

FATAL ERROR!

java.lang.ExceptionInInitializerError
at com.ibm.icu.impl.NormalizerDataReader.<clinit>(Unk nown Source)
at com.ibm.icu.impl.NormalizerImpl.<init>(Unknown Source)
at com.ibm.icu.impl.NormalizerImpl.<clinit>(Unknown Source)
at com.ibm.icu.text.Normalizer.decompose(Unknown Source)
at com.ibm.icu.text.Normalizer.decompose(Unknown Source)
at org.limewire.util.I18NConvertICU.convert(Unknown Source)
at org.limewire.util.I18NConvertICU.getNorm(Unknown Source)
at org.limewire.util.I18NConvert.<init>(Unknown Source)
at org.limewire.util.I18NConvert.<clinit>(Unknown Source)
at org.limewire.ui.swing.Initializer.loadLateTasksFor UI(Unknown Source)
at org.limewire.ui.swing.Initializer.loadUI(Unknown Source)
at org.limewire.ui.swing.Initializer.initialize(Unkno wn Source)
at org.limewire.ui.swing.GuiLoader.load(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.limewire.ui.swing.Main.main(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.exe4j.runtime.LauncherEngine.launch(LauncherEn gine.java:84)
at com.exe4j.runtime.WinLauncher.main(WinLauncher.jav a:94)
Caused by: java.lang.IllegalArgumentException: Invalid version number: Version number may be negative or greater than 255
at com.ibm.icu.util.VersionInfo.getInstance(Unknown Source)
at com.ibm.icu.impl.ICUDebug.getInstanceLenient(Unkno wn Source)
at com.ibm.icu.impl.ICUDebug.<clinit>(Unknown Source)
... 24 more


-- listing session information --
Current thread: main
Active Threads: 10
Peak Number of Thread: 19
System Load Avg: -1.0
Objects Pending GC: 0
Free Space In Settings: 82767859712
Free Space In Incomplete: 82767859712
Free Space In Downloads: 82767859712
Heap Memory Usage: init = 16777216(16384K) used = 23079464(22538K) committed = 55836672(54528K) max = 259522560(253440K)
Non-Heap Memory Usage: init = 163840(160K) used = 33076120(32300K) committed = 33488896(32704K) max = -1(-1K)

-- listing threads --
Mozilla: 1
Image Fetcher 0: 1
Deadlock Detection Thread: 1
NIODispatcher: 1
IdleThread: 1
main: 1
SwingWorker-pool-17401066-thread-1: 1
AWT-EventQueue-0: 1
backgroundExecutor: 1
IconLoader: 1


-- listing properties --
DHT_NODE_ID=A75216CD0F66A11306F09596703A1902CAE1C9 77
FORCE_IP_ADDRESS=true
UPNP_IN_USE=true
BANNED_EXTENSIONS=.and;.asf;.asx;.au;.htm;.html;.m ht;.u...
AVERAGE_UPTIME=1552
TOTAL_UPTIME=1552
LAST_GWCUPDATE_TIME=1596495697568
POSITIONS_SET=true
COUNTRY=
SHOW_SMART_SUGGESTIONS=false
LAST_SHUTDOWN_TIME=1596497246057
WINDOW_X_V5=256
SESSIONS=2
SEARCH_VIEW_TYPE_ID=1
LIBRARY_VERSION=FIVE_0_0
MAXIMIZE_WINDOW_V5=true
FILTER_ADULT=false
HANDLE_TORRENTS=false
DHT_MODE=PASSIVE_LEAF
KEEP_SEARCH_HISTORY=false
NEXT_URN_BLACKLIST_UPDATE=1597258056533
HANDLE_MAGNETS=false
SHARE_DOWNLOADED_FILES_IN_NON_SHARED_DIRECTORIES=f alse
FORCED_PORT=33860
ALLOW_PARTIAL_SHARING=false
DOWNTIME_HISTORY=86400;116969
FRACTIONAL_UPTIME=0.017645989
LAST_EXPIRE_TIME=1596495692829
WINDOW_Y_V5=23
GROUP_SIMILAR_RESULTS_ENABLED=false
CURRENTLY_RUNNING=true
UPTIME_HISTORY=1552
EVER_ACCEPTED_INCOMING=true
CLIENT_ID=5D0DBA4954C1909F9B6E9A2BF2235700
PLAYER_ENABLED=false
SHOW_CLASSIC_SEARCH_REMINDER=false
GWEBCACHE_SERVERS=http://uswest.gnutella.dyslexicfish.n...
DEFAULT_SEARCH_CATEGORY_ID=0