[IntelliJ] Uncaught Exception tools.jackson.core.exc.UnexpectedEndOfInputException: Unexpected end-of-input in VALUE_STRING

IntelliJ build version: 2026.2.0.1 IU-262.8665.337
OS: Windows 11
JDK: JetBrains s.r.o. 25.0.3
Plugin version: 3.97.7-2026.2
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,8,1920x1032,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]

Error message:

IdeaLoggingEvent[message=null, throwable=tools.jackson.core.exc.UnexpectedEndOfInputException: Unexpected end-of-input in VALUE_STRING
 at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); byte offset: #68986] (through reference chain: java.util.HashSet[2666])
	at com.microsoft.azure.toolkit.intellij.common.action.WhatsNewStartupActivity.lambda$execute$2(WhatsNewStartupActivity.java:35)
	at com.microsoft.azure.toolkit.lib.common.task.AzureTask.lambda$new$0(AzureTask.java:119)
	at com.microsoft.azure.toolkit.lib.common.task.AzureTaskManager.lambda$null$0(AzureTaskManager.java:273)
	at com.microsoft.azure.toolkit.lib.common.operation.OperationThreadContext.run(OperationThreadContext.java:85)
	at com.microsoft.azure.toolkit.lib.common.task.AzureTaskManager.lambda$execute$1(AzureTaskManager.java:270)

Start with com.microsoft.azure.toolkit.intellij.common.action.WhatsNewStartupActivity.java at line 35, then follow the AzureTask stack frames to understand the startup path. Reproduce the IntelliJ startup failure if possible and determine what outcome should replace the uncaught UnexpectedEndOfInputException; done means the startup activity no longer reports this uncaught exception.