by Gavin Stokes.
Hi Yvonne,
We have this same issue - upgraded from 2.5 to 2.7 and lost html support in the marking guide descriptions.
Desperately need it back or we'll have to edit hundreds of marking guides to remove html tags. And they'll look awful without any formatting.
The problem persists in 2.7.7+ and 2.8.5.
The mini-editor idea (https://tracker.moodle.org/browse/MDL-47245) is a possible solution, but doesn't look like there's much interest from other users - so far.
Wonder if there's some way to hack it for now...?