CLIENT - unhandled error in GUI - ConcurrentModificationException

Error type: CLIENT - unhandled error in GUI - ConcurrentModificationException

Client version: 1.4.55-V3 (build: 2024-12-16 20:14)
Java version: 1.8.0_201
Default charset: UTF-8

ConcurrentModificationException - look at server or client logs for more details

Stack trace:
java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909)
java.util.ArrayList$Itr.next(ArrayList.java:859)
org.mage.plugins.card.CardPluginImpl.sortPermanents(CardPluginImpl.java:351)
mage.client.plugins.impl.Plugins.sortPermanents(Plugins.java:137)
mage.client.util.layout.impl.CardLayoutStrategyImpl.doLayout(CardLayoutStrategyImpl.java:60)
mage.client.game.BattlefieldPanel.sortLayout(BattlefieldPanel.java:273)
mage.client.game.BattlefieldPanel.update(BattlefieldPanel.java:264)
mage.client.game.PlayAreaPanel.update(PlayAreaPanel.java:515)
mage.client.game.GamePanel.lambda$reloadThemeRelatedGraphic$5(GamePanel.java:642)
java.util.ArrayList.forEach(ArrayList.java:1257)
and other 8 lines

Start at org.mage.plugins.card.CardPluginImpl.sortPermanents, especially line 351, and trace the callers in Plugins.sortPermanents, CardLayoutStrategyImpl.doLayout, and BattlefieldPanel.sortLayout. Use the provided stack trace and client logs to investigate the ConcurrentModificationException. Done means the GUI no longer raises this exception during the affected update and permanent sorting still completes.

Written by the indexing model from the issue text.