Owners of certain Kobo e-reader models have reported problems accessing their personal data after updating to the latest beta version of the company's operating system. The affected devices include the Kobo Libra Colour, Clara BW, and Clara Colour. Users have found that books they added manually outside of the Kobo store, along with annotations, saved words in the "My Words" feature, and reading statistics, are no longer visible after the update. Kobo has acknowledged the issue and is working on a fix, asking affected users to be patient while the company resolves the problem. Kobo has clarified that no user data has been permanently deleted, but it is currently inaccessible after the update. The company warns users with e-readers running versions 5.18.270971 or 6.0.274403 not to try restoring or reinstalling an earlier version of the software, as doing so could result in the permanent loss of the missing content with no way to recover it. Kobo states that the fix being developed will automatically restore the data without requiring users to re-add their books. However, the company has not yet provided a specific date for when the fix will be available, only confirming that technical teams are working on it. Users can check their e-reader's software version by going to the "Device Information" section in the device's settings. E-readers that display a version earlier than the affected ones are not impacted and do not need to take any action. Kobo has not yet provided further details about the cause of the issue but has assured users that they are prioritizing a resolution to restore full access to their data.