# MMDC 3 Beta Math Support and other related problems

#### christian.kolen

23 Dec, 2015 04:42 AM

# MWE

HTML Header: <script type="text/javascript"
src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
</script>

\$$\frac{1}{2}+\frac{1}{2}=1\$$


I don't know exactly how and when this happens. But whenever I use the pro or standard version of MMD Composer 3 (latest), sometimes the Math renders, sometimes it doesn't.

I attached a screen capture to show the problem. The left is MMDC 2.8, middle is MMDC 3.0b standard, the right is MMDC 3.0b Pro.

I also ran into a problem lately about the MMDC 2.8 (Mac App Store version): sometimes after I double-click an md file, MMD 2.8 opens but it took forever for the file to appears. If I double-click the file again and it will show an empty screen, as the 2nd attached screen shot shows.

Lastly, I received an Composer Parser Error.txt when I was testing, as attached.

1. Support Staff Posted by Fletcher on 23 Dec, 2015 06:56 PM

1) When you edit a file with math, you will have to use the refresh
preview menu command to update it.

2) Can you send me the file that isn't working on 2.8? Any error
messages in the Console?

3) The parser error has been fixed for the next release. Thanks for
sending!

Fletcher

2. Posted by christian.kolen on 25 Dec, 2015 09:41 PM

I tried to uninstall all MMDCs with AppCleaner (and the default uninstaller with MAS version), and install them all back and they work perfectly again. May be some old betas messed up something? Anyway, thanks!

3. Support Staff Posted by Fletcher on 27 Dec, 2015 05:53 PM

Glad it's working!

F-

4. Fletcher closed this discussion on 27 Dec, 2015 05:53 PM.

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