I installed Krusader on Void Linux.
I get an error if I try to connect to a webdav share, it is successful if I add a bookmark and if relaunch Krusader and if click on the bookmark.
The share is like webdavs://<server address>
Once connected, I can copy files to it and I get a popup window confirming me the copy is over.
But the copy is too fast and the file is 167 bits large though the original file is 837 MB large.
I have no write problem under Dolphin or Caja.