Since updating to the latest 2021.4.x versions cannot switch anymore from Visual Editor to Code Editor on some of the built-in cards like Conditional, Glance, Vertical/Horizontal Stack.
Strangely, few others still working like Picture, Map, Entities cards.
Currently using:
| Version | core-2021.4.4 |
|---|---|
| Installation Type | Home Assistant Container |
| Development | false |
| Supervisor | false |
| Docker | true |
| Virtual Environment | false |
| Python Version | 3.8.7 |
| Operating System Family | Linux |
| Operating System Version | 5.4.0-65-generic |
| CPU Architecture | x86_64 |
Frontend version: 20210407.3 - latest
Custom UIs: JS 20201218 adapted for HA 2020.X.X +