Harald @wild_74 Which runtime are you using? If you're using spine-unity, by default all atlas page textures are loaded alongside loading your main skeleton asset. There are means to use on-demand loading, which is provided for spine-unity via this experimental UPM package: EsotericSoftware/spine-runtimes1890
Misaki wild_74 I see, so Harald's answer applies to you. You may want to try to use the UPM package com.esotericsoftware.spine.on-demand-loading as Harald mentioned. If you have any additional questions, please don't hesitate to ask.