### Author:  [@peternlewis](https://meta.discourse.org/u/peternlewis)
#### Post date: [March 23, 2023, 9:02am UTC](https://meta.discourse.org/t/no-editor-preview-while-editing-after-upgrading-to-3-x/259126/1 "2023-03-23T09:02:03Z")
So the upgrade did not go entirely smoothly. I set the site to read-only, powered down, did a full machine snapshot, powered back up and then tried to upgrade. But the Click here to upgrade link did not do anything. So then I manually went to admin/upgrade and upgraded Docker which went ok, and then upgraded Discourse which failed, with among other messages:
> $ bundle install --deployment --jobs 4 --without test development
> [DEPRECATED] The `--deployment` flag is deprecated because it relies on being remembered across bundler invocations, which bundler will no longer do in future versions. Instead please use `bundle config set --local deployment 'true'`, and stop using this flag
> [DEPRECATED] The `--without` flag is deprecated because it relies on being remembered across bundler invocations, which bundler will no longer do in future versions. Instead please use `bundle config set --local without 'test development'`, and stop using this flag
>
> Fetching gem metadata from [https://rubygems.org/](https://rubygems.org/)…
> web-push-3.0.0 requires ruby version \>= 3.0, which is incompatible with the
> current version, 2.7.6
> Docker Manager: FAILED TO UPGRADE
> #\
So then I logged in and did the manual upgrade, git pull / launcher rebuild app and that seems to have worked and got me back up and running.
I turned off read-only mode, but now no editor preview shows to the right of the Reply/New Message editor - the area just remains blank white.
Any suggestions as to how to figure out why the preview is not displaying?
The only plugins I have are discourse-mark and discourse-solved.
Not sure why discourse-mark doesn’t have a tick. Perhaps I should try removing and/or reinstalling that (if that’s a good idea, a pointer to how to do that would be helpful).
Thanks.
---
### Author:  [@JammyDodger](https://meta.discourse.org/u/JammyDodger)
#### Post date: [March 23, 2023, 9:05am UTC](https://meta.discourse.org/t/no-editor-preview-while-editing-after-upgrading-to-3-x/259126/2 "2023-03-23T09:05:32Z")
[Discourse Mark Plugin](https://meta.discourse.org/t/discourse-mark-plugin/93059) is not an official plugin so won’t have the green tick. It has also been deprecated as mark is now supported in core. 👍
I’m not sure if removing that will sort out your issue, but it may be a good place to start.
You could also try [safe mode](https://meta.discourse.org/t/53504?silent=true) and see if disabling themes and/or plugins helps narrow it down. 🤞
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### Author:  [@peternlewis](https://meta.discourse.org/u/peternlewis)
#### Post date: [March 23, 2023, 9:22am UTC](https://meta.discourse.org/t/no-editor-preview-while-editing-after-upgrading-to-3-x/259126/3 "2023-03-23T09:22:00Z")
Disabling the Mark plugin and rebuilding again seems to have resolved the issue, and seems like disabling it is a good idea anyway.
Hopefully everything else works out now!
Thanks.
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### Author:  [@JammyDodger](https://meta.discourse.org/u/JammyDodger)
#### Post date: [March 23, 2023, 9:42am UTC](https://meta.discourse.org/t/no-editor-preview-while-editing-after-upgrading-to-3-x/259126/4 "2023-03-23T09:42:59Z")
That’s fantastic 🙂 🎉
> [@peternlewis](#):
>
> Perhaps I should try removing and/or reinstalling that (if that’s a good idea, a pointer to how to do that would be helpful).
I missed this before, but just in case you need it, if you want to remove it completely you would edit your `app.yml` in pretty much the reverse of [Install plugins on a self-hosted site](https://meta.discourse.org/t/install-plugins-in-discourse/19157) 👍
---
### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [April 22, 2023, 9:43am UTC](https://meta.discourse.org/t/no-editor-preview-while-editing-after-upgrading-to-3-x/259126/5 "2023-04-22T09:43:09Z")
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