Disparition d'une collection

There is a search field immediately under the word Collection. Type part of the name of this collection into this search field, and see if it can be found that way.

If not, you can use a recent backup of your catalog file to recover the collection of interest.

Please consider including the following in your question:

• Adobe product and version number
• Operating system and version number
• The full text of any error message (s)
• What you were doing when the problem occurred
• Screenshots of the problem
• Computer hardware, such as CPU; GPU; the amount of RAM; etc

Thanks. The above info will help to solve your problem.