I can't separate a path on a node

[catonano@…]

What steps will reproduce the problem?

1. select a way with multiple nodes
2. select one of the nodes of the selcted way
3. from the menu tool choose separate paths

What is the expected result?

to get 2 separate paths

What happens instead?

a red popup window appears in the bottom let corne claiming the selcted node is not attached to any path

Please provide any additional information below. Attach a screenshot if possible.

Here's a short footage of the problem
​https://peertube.mastodon.host/videos/watch/900fc78a-991e-41da-815d-9a6ea97c7902

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-10-28 22:27:31 +0100 (Sun, 28 Oct 2018)
Build-Date:2018-10-28 21:33:32
Revision:14382
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14382 it) Linux Fedora 28 (Workstation Edition)
Memory Usage: 558 MB / 1676 MB (344 MB allocated, but free)
Java version: 1.8.0_191-b12, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Java package: java-1.8.0-openjdk:x86_64-1.8.0.191.b12
Dataset consistency test: No problems found

Plugins:
+ ImproveWay (24)
+ OpeningHoursEditor (34535)
+ apache-commons (34506)
+ apache-http (34632)
+ continuosDownload (82)
+ graphview (34576)
+ gson (34389)
+ jna (34633)
+ log4j (34527)
+ mapdust (34528)
+ reltoolbox (34614)
+ rex (49)
+ routing (34554)
+ tageditor (34560)
+ turnlanes (34566)
+ turnlanes-tagging (272)
+ utilsplugin2 (34506)
+ waydownloader (34569)
+ wikipedia (v1.1.1)

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.

[catonano]

a video in which I show how I run into thsi problem

[GerdP]

I think what you want to do is called "Split way", the Hotkey is P. What you call "Split paths" (Unglue ways) is used when you have two ways which are connected in one node. Normally there is no need to mark both the way and the node. If there is a need, JOSM will tell you.

[Klumbumbus]

I like those bug reports with video and audio commentary :)
I think GerdP is right, you are searching for split way. Simply select the middle node and press P. After this you get two ways which are "glued" together on this node. You may use Unglue Ways (G) on this node then if you want two complete separate ways.
Please comment and/or reopen this ticket if this doesn't solve your problem.