Supply flags from Wiring tools pallete are OK.
Other parts from EELib are OK but in Sim mode: cannot click to select then place Supply flags from the EELib:
![cannot_select_supply_flags_from_EELib.gif](//image.easyeda.com/pullimage/C7h6MII1gVZTGrEQYggDr22gZVb5telPk8zOZxSa.gif)
**Workaround is to use supply flags from floating Wiring Pallete.**
In Std mode there is no problem.
Chrome
77.0.3865.90
Ubuntu
EasyEDA
6.2.46