Print does't work

[ilserver]

Describe the bug
A clear and concise description of what the bug is.
Hello, my problem is print related.
This is my setup:
NC = 33.03
Richdocuments = 10.3.0
Collabora Office code = 26.04.3.1

If I try to print from:
File -> Print = nothing happens
File -> Download -> PDF = nothing happens
CTRL+P = nothing happens

All are shown an animation overlay of a box...

On developer tool (of the browser) I found this:

Request URL
https://office.xxx.xxx/cool/https%3A%2F%2Fnc.xxx.xxx%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F25878_oc9e23gzaacz/download/kqsYBtw96UcveWRGFAu7m953ys3C2qk1TrbM0JLoXXOUzxA5aNaGQLXXksocmlp4?WOPISrc=https%3A%2F%2Fnc.xxx.xxx%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F25878_oc9e23gzaacz&compat=/ws
Request Method
GET
Status Code
400 Bad Request
Remote Address
aa.bb.cc.dd:443
Referrer Policy
no-referrer
content-length
0
date
Fri, 28 Aug 2026 10:30:01
server
webserver
server
strict-transport-security
max-age=63072000; includeSubDomains; preload
x-content-type-options
nosniff
:authority
office.xxx.xxx
:method
GET
:path
/cool/https%3A%2F%2Fnc.xxx.xxx%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F25878_oc9e23gzaacz/download/kqsYBtw96UcveWRGFAu7m953ys3C2qk1TrbM0JLoXXOUzxA5aNaGQLXXksocmlp4?WOPISrc=https%3A%2F%2Fnc.xxx.xxx%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F25878_oc9e23gzaacz&compat=/ws
:scheme
https
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,/;q=0.8,application/signed-exchange;v=b3;q=0.7
accept-encoding
gzip, deflate, br, zstd
accept-language
en-US,en;q=0.9,it-IT;q=0.8,it;q=0.7
cache-control
no-cache
dnt
1
pragma
no-cache
priority
u=0, i
sec-ch-ua
""
sec-ch-ua-mobile
?0
sec-ch-ua-platform
""
sec-fetch-dest
iframe
sec-fetch-mode
navigate
sec-fetch-site
same-origin
sec-fetch-user
?1
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0

No log on NC side or apache side;

But this is coming from coolwsd:

Aug 28 12:34:37 collabora02.yyy.yyy coolwsd[883]: wsd-00883-01028 2026-08-28 10:34:37.884190 [ websrv_poll ] ERR #130: Exception while processing incoming request: GET HTTP/1.1 /cool//https:%252F%252Fnc.xxx.xxx%252Findex.php%252Fapps%252Frichdocuments%252Fwopi%252Ffiles%252F25878_oc9e23gzaacz/download/55yebCYM3GtaWBuDeZhd6kQjjvpWGr6n9oECOy6XNobDPN5J4d4PYOJVy3DMpez5?WOPISrc=https%3A%2F%2Fnc.xxx.xxx%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F25878_oc9e23gzaacz&compat=/ws, content-length: -1, chunked: false, Host: office.xxx.xxx / Pragma: no-cache / Cache-Control: no-cache / Sec-Ch-Ua-Platform: "" / User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0 / Sec-Ch-Ua: "" / Dnt: 1 / Sec-Ch-Ua-Mobile: ?0 / Accept: / / Sec-Fetch-Site: same-origin / Sec-Fetch-Mode: cors / Sec-Fetch-Dest: empty / Accept-Encoding: gzip, deflate, zstd / Accept-Language: en-US,en;q=0.9,it-IT;q=0.8,it;q=0.7 / Priority: u=1, i / X-Forwarded-For: aa.bb.cc.dd / X-Forwarded-Host: office.xxx.xxx / X-Forwarded-Server: office.xxx.xxx / Connection: Keep-Alive, closeConnection: false, socket-data: [GET /cool//https:%252F%252Fnc.xxx.xxx%252Findex.php%252Fapps%252Frichdocuments%252Fwopi%252Ffiles%252F25878_oc9e23gzaacz/download/55yebCYM3GtaWBuDeZhd6kQjjvpWGr6n9oECOy6XNobDPN5J4d4PYOJVy3DMpez5?WOPISrc=https%3...]: Invalid URI.|home/collabora/jenkins/workspace/package_code_26.04_rpm/rpmbuild/BUILD/coolwsd-26.04.3.1/wsd/ClientRequestDispatcher.cpp:1702

It's seems there's too many slashes or double encoding,....

Or am I wrong??

[ilserver]

No one?