Hi Dee,
You mentioned that you have a transition region in your event. Do you have a transition timeline opened? This is when you double click on a transition marker or transition region and a new timeline appears with a green ruler at the top.
When a transition timeline is open you cannot interact with the marker or transition marker/region related to that transition. You can see which transitions markers or regions have a transition timeline associated with it by the circle to the left of the name.
If you don’t have the transition timeline open, when the cursor reaches this transition it will appear to stay in place for the duration of the timeline. There is more information for this in our manual (press F1 in FMOD Studio).
If you still wish to upload a screenshot you can use a free image hosting site like Imgur and just link to it here.
Thanks,
Richard