# Error when opening Royal TSX Document

**URL:** https://community.royalapps.com/t/error-when-opening-royal-tsx-document/2265
**Category:** Royal TSX (for macOS)
**Tags:** documentation
**Created:** [April 20, 2026, 6:27am UTC](https://community.royalapps.com/t/error-when-opening-royal-tsx-document/2265 "2026-04-20T06:27:18Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![christoph\_muehlberger](https://community.royalapps.com/user_avatar/community.royalapps.com/christoph_muehlberger/32/1572_2.png) [@christoph\_muehlberger](https://community.royalapps.com/u/christoph_muehlberger)
#### Post date: [April 20, 2026, 6:27am UTC](https://community.royalapps.com/t/error-when-opening-royal-tsx-document/2265/1 "2026-04-20T06:27:19Z")

</div>

If you’re unable to open Royal TSX Documents, either manually, or through **Open documents from last session** , the issue may be related to missing permissions.

The error message may display:

_ **Warning** _  
_An error occurred while loading a document: Unknown error_

Please make sure that Royal TSX has access to the folder where the document(s) are located.

This can be fixed by either giving Royal TSX **Full Disk Access** via the **System Settings \> Privacy & Security \> Full Disk Access"** section as shown here:

 ![image](https://community.royalapps.com/uploads/default/original/2X/0/0ef1e612ef348f3c754f98ed182ae798366e5c2e.jpeg)

Alternatively, please select the affected folder in **System Settings \> Privacy & Security \> Files & Folders** and give the permission to Royal TSX.

Should you need any further assistance, don’t hesitate to reach out to us by creating a New Support Ticket [here](https://www.royalapps.com/go/support-ticket-new).