[MCL-11108] Launcher closes immediately after being opened if beta versions are enabled

Mod Notice

Here's how to disable the beta launcher again:

If you switched to the beta launcher and can't log in, you can switch back by editing launcher_profiles.json in your minecraft folder. Change the "channel" field from "beta" to "release".

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Here's a guide on how to find your minecraft folder: Click me

JSON files can be opened and edited by any plain text editor.

If you need any further assistance with opting out of the beta launcher, please join the Community Support help chat. There are people in there that can help you.

The bug

The launcher is closed immediately after being opened. I am on the beta channel. This is happening since the launcher has been released. Switching to the release channel by editing launcher_profiles.json solves the issue.

I have attached the launcher log, as well as the native log.

To reproduce

Open launcher
Go to "Settings"
Enable beta versions
→ ❌ Launcher closes. When trying to open it again, it'll close again

Linked issues

is duplicated by 5

MC-155107 A Crash Problem on the Mincraft Launcher Resolved

MCL-11109 Minecraft BETA Launcher keeps closing on open after a game crash. Resolved

MCL-11110 Launcher keeps closing Resolved

MCL-11111 Crash Resolved

MCL-11114 Launcher crashes a few seconds after being opened Resolved

Attachments

launcher_log.txt

nativelog.txt

Comments 5

Tom_The_Geek 2019-06-24T15:50:59Z

Can confirm, having the same issue and was checking if it had already been reported. I'm using Windows 10 Pro (x64)

JochCool 2019-06-24T15:52:27Z

Can confirm this. Happens to me too. Same launcher log.

migrated 2019-06-24T15:54:15Z

Can confirm this issue. I'm using Windows 10 Home (x64).

UPDATE: I can now launch the beta Minecraft launcher. I got an update.

migrated 2019-06-24T16:03:09Z

I think the bug happens, because there is an empty launcher-core value in the beta update files. Normaly a table with the version number and download link like in the release files exists.

UPDATE: No longer the case. The Beta files are fixed now.

migrated 2019-06-24T16:11:20Z

confirmed to be the case here as well, using windows 10 lenovo desktop computer, tried running normal and on administrator and still crashes, was able to click out of the beta option by being fast enough before it crashes again, which solved it for me.