Fatal Error when trying to close Markdown file

[d4nyll]

When I open PyCharm Profession 2017.3 with a Markdown file already opened in the workspace, when I try to close the Markdown file, it hangs the entire IDE. In the 'IDE Fatal Errors' dialog, I get the following trace:

Failed to execute shutdown post message.
com.teamdev.jxbrowser.chromium.internal.ipc.IPCException: Failed to execute shutdown post message.
	at com.teamdev.jxbrowser.chromium.internal.ipc.IPC.c(Unknown Source)
	at com.teamdev.jxbrowser.chromium.internal.ipc.IPC.stop(Unknown Source)
	at com.teamdev.jxbrowser.chromium.Browser.a(Unknown Source)
	at com.teamdev.jxbrowser.chromium.Browser.dispose(Unknown Source)
	at com.github.shyykoserhiy.gfm.browser.BrowserJx$4.run(BrowserJx.java:67)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:762)
	at java.awt.EventQueue.access$500(EventQueue.java:98)
	at java.awt.EventQueue$3.run(EventQueue.java:715)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:732)
	at com.intellij.ide.IdeEventQueue.i(IdeEventQueue.java:822)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:650)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:366)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

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Initially, I thought this was a PyCharm error, and filed an issue (#PY-28450) at YouTrack. For more details, please refer to the ticket there.

[rask]

Same problem here. Had a README.md file open on my workspace which I had to keep opened to prevent PyCharm from crashing.

The following all triggered the crash:

1. Closing file tab on its own,
2. Closing the file tab with Close other tabs option of some other file tab,
3. Setting the tabs position to None.

After uninstalling this plugin the file closed normally.

[perk11]

Happens to me too in IntelliJ 2019.1 I had to disable the plugin.