/heal doesn't remove potion effects

[TheNety]

Information

Full output of /ess version:

[17:36:43 INFO]: Server version: 1.15.2-R0.1-SNAPSHOT git-Paper-350 (MC: 1.15.2)
[17:36:43 INFO]: EssentialsX version: 2.17.2.113
[17:36:43 INFO]: PlaceholderAPI version: 2.10.6
[17:36:43 INFO]: LuckPerms version: 5.1.26
[17:36:43 INFO]: Vault version: 1.7.2-b107
[17:36:43 INFO]: Citizens version: 2.0.26-SNAPSHOT (build 1951)
[17:36:43 INFO]: EssentialsXChat version: 2.17.2.113
[17:36:43 INFO]: ChestShop version: 3.10.1 (build 174)
[17:36:43 INFO]: EssentialsXProtect version: 2.17.2.113
[17:36:43 INFO]: EssentialsXAntiBuild version: 2.17.2.113
[17:36:43 INFO]: EssentialsXSpawn version: 2.17.2.113

EssentialsX config: https://gist.github.com/Nety01/0a065321b65b23e334ddd675b2b39341

Details

Description
/heal doesn't remove potion effect, even when remove-effects-on-heal: true

[pop4959]

You're right, it doesn't seem to be working for whatever reason. This is a relatively new feature, which was introduced in #2754. We'll look into it.