Hello Willie,
I’ve just tested it on an upgraded version (however, I’m on 8.10.1 since this morning) and it’s working fine. In fact - much better than before, since now we’ve got the TinyMCE widget for editing the templates.
Is it possible that you’re on a non EN version?
Make sure, that in your profile, you’ve got the TinyMCE option selected:
There has been an issue with Mozaik E-Mail templates a couple of versions back.
Other than that, if you’re having issues with currency fields, check out the 8.10.1 upgrade (you should upgrade rather sooner than later due to the issue on 8.10.0:
If these don’t solve the issue, can you send some screenshots / log details?