Kate sftp edit not working in aarch64, kio-extras, termux, proot

Hi guys

Kate remote sftp edit is not working in Ubuntu Cosmic Cuttlefish (18.10)
aarch64.

When a remote file is opened, a dialog with red cross appears that says

"Malformed url"

and in Kate a red dialog shows

"The file **** could not be loaded, as it was not possible to read from it. Check
if you have read access to this file"

I am running Lubuntu into a proot jail under termux in Android 8.0
Galaxy Tab S3 tablet. Everything worked before, in Ubuntu 18.04. I upgraded
in order to use the new LXQT 0.13 that comes with Ubuntu 18.10.

I have kio-extras installed, and I am using LXQT 0.13 desktop.

Gvfs is working nice both in 18.04 and 18.10. Sftp remote edit can be done using gedit, xed, pluma, etc.

Remote folders can be mounted by sftp in pcmanfm-qt, dolphin (and off course, in pcmanfm, thunar, etc)

It looks like a problem with kio-extras in proot jail in aarch64, or maybe a problem in kio-extras in aarch64, but I don't have an arm64 machine to test it outside proot jail.

Same problem happens in Debian testing (and any other distro I've tried)

Thank you so much in advance.