From curseforge - https://www.curseforge.com/minecraft/mc-mods/capsule#c266

Anyone else having issues with the balance options? I removed minecraft:spawner form it, but it ignores this and put it back it. Doesn't matter if I remove it from outside the game or inside through the mod config menu. Once I load(or relaod in case of ingame editing) the game up it adds it back to the config file.

Version: 5.0.73

Fixed in 5.0.75
Should be up soon at https://www.curseforge.com/minecraft/mc-mods/capsule/files