# Bugs in Version 3.0b42: HTML Header, Synchronized Scrolling

#### christian.kolen

21 Jan, 2016 04:54 AM

# Synchronized Scrolling not Synchronized

This one is also present in older beta. If the cursor is on the preview, it's fine. But if the cursor is on the editor, the preview is not moving even when scrolling the text (and held down the modify key).

# HTML Header not processed in Preview

This bug only appears in this latest version 3.0b42, the older one is fine. Basically the HTML Header I setup for either MathJax or highlight.js doesn't work. I guess the HTML Header is not included in the preview?

1. Posted by dong Song on 22 Jan, 2016 07:34 AM

With the new version, I get no preview.

2. Support Staff Posted by Fletcher on 22 Jan, 2016 05:58 PM

1. Is the document window the active window? For some reason, if a
window is in the background (say, when a TOC HUD is active), the editing
frame doesn't always receive the mouse commands. I'm not sure why, but
haven't been able to track it down yet. If you turn on the "always
synchronize preview" then it doesn't matter as any scroll command will
sync them.

2. You need to use a full refresh of the preview to get it to recognize
changes to the header, or to rerun syntax highlighters. There's a bug
but you can turn on the "always refresh preview" option to force a full
refresh with every keystroke. This will slow things down, but you get a
full reload of the preview with every update (like v2 used to do).

F-

3. Support Staff Posted by Fletcher on 22 Jan, 2016 05:59 PM

I'll need more information. The preview is still there. Did you change
the settings in Preview Preferences?

F-

4. Posted by christian.kolen on 01 Feb, 2016 03:20 AM

Thanks.
Once I checked the "always refresh preview" and "always synchronize preview", the preview with CSS and JS are then there. In the past I don't need to check these (probably only the first one matter).

5. christian.kolen closed this discussion on 02 Mar, 2016 02:53 AM.

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