"expected filesize" error on random file uploads #2808
Description
Steps To Reproduce
Hi,
I have version 33.0.0 and the Windows client version 4.0.6. When I move, for example, 10 PDF files into my Nextcloud folder that is automatically synchronized with my Nextcloud, the files sometimes upload successfully, but sometimes the following error occurs, which also prevents any further files from being uploaded:
[no app in context] Error: Expected file size of 13542533 bytes, but 1245184 bytes read (from the Nextcloud client) and written (to Nextcloud storage). This can either be a network problem on the sending side or a problem writing to storage on the server side.
PUT /remote.php/dav/files/XXX/20260228_145938_SCN_0001_20260228_151247/20260228_145938_SCN_0001_20260228_151247_004.pdf
from 192.168.1.100 by robin at 28.02.2026, 17:36:05
Nextcloud Client Error: https://i.ibb.co/n8PFjFX7/1b425f2310dd26ce3608b2b90a95520b.png
Windows Explorer: https://i.ibb.co/ZRZ3MbvW/87ce920d23c89d86fb6de253762df17b.png
The following appears in the Apache error log:
root@cloud:/home/ncadmin# tail -f /var/log/apache2/error.log
...
[Sat Feb 28 17:41:05.743128 2026] [proxy_fcgi:error] [pid 31695:tid 139571018831552] (70008)Partial re sults are valid but processing is incomplete: [client 192.168.1.100:61399] AH01075: Error dispatching request to : (reading input brigade)
[Sat Feb 28 17:42:05.451442 2026] [proxy_fcgi:error] [pid 31696:tid 139571438270144] (20014)Internal e rror (specific information not available): [client 192.168.1.100:61457] AH01075: Error dispatching req uest to : (reading input brigade)
[Sat Feb 28 17:42:05.465356 2026] [proxy_fcgi:error] [pid 31695:tid 139570758788800] (20014)Internal e rror (specific information not available): [client 192.168.1.100:61455] AH01075: Error dispatching req uest to : (reading input brigade)
[Sat Feb 28 17:42:05.482829 2026] [proxy_fcgi:error] [pid 31696:tid 139571547928256] (70008)Partial re sults are valid but processing is incomplete: [client 192.168.1.100:61456] AH01075: Error dispatching request to : (reading input brigade)
What is happening here? I can no longer upload files reliably. Sometimes it works and sometimes it doesn't. After a while, the failed files do eventually get uploaded — but only after many attempts and error messages.
It would be great if someone could explain to me why all of this is happening. Nextcloud is unfortunately not properly usable in this state.
Maybe there is an error in the apache config?
Thank you very much!
Build Version
33.0.0
Environment
By using the scripts
Environment Details
- OS: Ubuntu 24.04.4 LTS