Preview stops working after opening a few tabs.

[nvierge]

Observed vs. expected behavior

When the IDE has just been launched, everything works like a charm: the preview is displayed after a slight latency.
After a while and opening several tabs, the preview stops working and remains empty indefinitely.

Steps to reproduce

1. Start IntelliJ IDEA 2023.1.3 (Community Edition)
2. Open .adoc files in mode "Show Editor and preview"
3. The preview works for a while, then goes blank.

Environment

Plugin Version: 0.38.20

IntelliJ Details: IntelliJ IDEA 2023.1.3 (Community Edition)
Build #IC-231.9161.38, built on June 20, 2023
Runtime version: 17.0.7+10-b829.16 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 11.0
GC: G1 Young Generation, G1 Old Generation
Memory: 4096M
Cores: 16
Registry:
ide.browser.jcef.gpu.disable=true

Non-Bundled Plugins:
org.plugin.dot.id (1.4.1)
PlantUML integration (6.3.0-IJ2022.2)
org.asciidoctor.intellij.asciidoc (0.38.20)

Kotlin: 231-1.8.21-IJ9161.38

Logs

2023-07-12 08:59:13,966 [  73923]   INFO - STDERR - java.lang.NullPointerException: Cannot invoke "org.cef.handler.CefFocusHandler.onSetFocus(org.cef.browser.CefBrowser, org.cef.handler.CefFocusHandler$FocusSource)" because "this.focusHandler_" is null
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at jcef/org.cef.CefClient.lambda$onSetFocus$1(CefClient.java:467)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at jcef/com.jetbrains.cef.JdkEx$SyncCallable.run(JdkEx.java:140)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:788)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:739)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:731)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:763)
2023-07-12 08:59:13,967 [  73924]   INFO - STDERR - 	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:761)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:760)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:667)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$7(IdeEventQueue.kt:571)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.openapi.application.impl.ApplicationImpl.withoutImplicitRead(ApplicationImpl.java:1446)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:571)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:68)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:349)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:348)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:787)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:348)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:343)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:995)
2023-07-12 08:59:13,968 [  73925]   INFO - STDERR - 	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:105)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:995)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$4(IdeEventQueue.kt:343)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:831)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:385)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
2023-07-12 08:59:13,969 [  73926]   INFO - STDERR - 	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)
2023-07-12 08:59:15,353 [  75310]   WARN - #org.asciidoc.intellij.editor.jcef.AsciiDocJCEFHtmlPanel - rendering didn't complete in time, might be slow or broken
2023-07-12 08:59:16,098 [  76055]   WARN - #org.asciidoc.intellij.editor.jcef.AsciiDocJCEFHtmlPanel - rendering didn't complete in time, might be slow or broken
2023-07-12 08:59:16,992 [  76949]   WARN - #org.asciidoc.intellij.editor.jcef.AsciiDocJCEFHtmlPanel - rendering didn't complete in time, might be slow or broken
2023-07-12 08:59:18,493 [  78450]   WARN - #org.asciidoc.intellij.editor.jcef.AsciiDocJCEFHtmlPanel - rendering didn't complete in time, might be slow or broken
2023-07-12 08:59:19,234 [  79191]   WARN - #org.asciidoc.intellij.editor.jcef.AsciiDocJCEFHtmlPanel - rendering didn't complete in time, might be slow or broken
2023-07-12 08:59:23,679 [  83636]   WARN - #org.asciidoc.intellij.editor.jcef.AsciiDocJCEFHtmlPanel - rendering didn't complete in time, might be slow or broken