Duplicate tools in The Dude v7.2.3

RouterOS The Dude
1

Hi all, after trying to add a custom tool, the default tools were duplicated:

ROS v7.2.3
hAP ac^2 (RBD52G-5HacD2HnD)

Duplicates cannot now be removed.

2

Reload the backup you made, for sure, before doing anything on the settings.
Right?