The following case applies only if you migrated from version 3 to 4.
(Just to be sure, if you had to install bench to install erpnext, this
bug doesn’t affect you).
Due to a bug in the new file manager, some attachments created in
version 3 got replaced if uploaded with the same filename. On updating
to the latest, this should stop hapenning.
Also, a new patch renames the new files and leaves a file
“missing_files.txt” in your sites directory. You can copy these files
from a backup from version 3 or from /home/erpnext/erpnext if you had
not removed the old instance. The 3 to 4 migration scripts leaves it
We are extremely sorry for any damage this has caused you.
For frappecloud subscribers, we were able to recover all missing files