Configure slider node like in this flow .
[{"id":"ce5cda8b.5f9118","type":"ui_slider","z":"b02a69cb.a920e8","name":"","label":"slider","tooltip":"","group":"ea5f3f04.58db4","order":0,"width":0,"height":0,"passthru":true,"outs":"end","topic":"","min":"50","max":"100","step":1,"x":330,"y":320,"wires":[[]]},{"id":"ea5f3f04.58db4","type":"ui_group","z":"","name":"Default","tab":"843d2ff8.6cf31","disp":true,"width":"6","collapse":false},{"id":"843d2ff8.6cf31","type":"ui_tab","z":"","name":"Home","icon":"dashboard","disabled":false,"hidden":false}]
Slider doesn't work and value is always 100.
System info:
11 Apr 14:30:01 - [info] Node-RED version: v0.20.5
11 Apr 14:30:01 - [info] Node.js version: v10.14.0
11 Apr 14:30:01 - [info] Windows_NT 10.0.17134 x64 LE
11 Apr 14:30:02 - [info] Loading palette nodes
11 Apr 14:30:04 - [warn] rpi-gpio : Raspberry Pi specific node set inactive
11 Apr 14:30:04 - [info] Dashboard version 2.15.0-beta started at /ui