Hi Eve

Thanks for posting in the Community.

If you have overlapping objects I'd recommend as a first step making sure that your swimlanes were not pushed to the back.

You can easily adjust this arrangement by right-clicking one of the objects hovering over “Arrange” and selecting one of the following:

Bring to Front: Bring an object to the front of all overlapping objects.
Send to Back: Send an object to the back of all overlapping objects.
Bring Item Forward: Bring an object to the front of the object directly in front of it.
Send Item Backward: Send an object to the back of the object directly behind it.

If playing around with these options does not do the trick it would be very helpful to have additional details/context regarding your specific situation such as:

* What steps did you take that led to the disappearance of the swimlanes?

* What were you trying to achieve?

* Are you able to provide a screenshot of your document to illustrate the issue?

The more information the better.

Please also feel free to submit a support request here for private assistance.

Thank you!