Wrong or misplaced links

They may either be in the wrong place or nowhere to be found. Links are important

extensions of your course content. They point to additional resources or further

explain a subject. Double check them by clicking each link. Make them clear

specific, brief, and accurately labeled

Illegible typography

This one might seem nit picky, but it is definitely not. Great typography is a huge part of a fluid user experience; and if yours is not set correctly, your going to be losing learners' attention quickly.

Lack of clear instructions

Vague instructions for quizzes and games confuse learners. This is especially

important in highly interactive tasks (think drag-and-drop games) and situations

where they need to interact with content on-screen. Instead of completing activities

to help students check their progress, unclear instructions can frustrate them.

Confusing Navigation

Navigation is one of those things you must get right. Create a course that has a friendly direction, that includes the intuitive navigation people look for, and that's immediately clear to the learner what to do next. Buttons, Exit, Help, continue, Go Back - try to keep them simple!!

Grammar & Spelling errors

eLearning course developers are expected to master grammar and spelling. This is the most evident way of showing learners that you are dead serious about grammar and spelling. Proofread your copy. Make sure all text is accurate and free of typos.

Slow loading media

Nothing frustrates people more than an animated clock that says 'loading' and still does five minutes later. Consider your audience (you may have users with slow connections or older hardware). Be sure to optimize all of your media so that it loads quickly.

Videos or media not working

Many students rely on videos and interactive content. Why not? They are much more efficient in packing a ton of content in as little as five minutes. The problem is, videos are prone to glitches. Sometimes they play but are unable to sync accurately with the audio. Or they don't play at all.

Incorrect labeling of graphics and

charts

These visual tools help simplify and organize content-heavy courses. Labeled incorrectly, they can misinform or confuse learners. Take a look at each name or number and edit them separately to make sure they are correct.