Hello community :shopware: Im facing one problem, follow me. I was trying to copy the standard shopware responsive theme(since i already did some changes inside it) to make it updatesafe. I copied theme and placed it in same order same the responsive (with other name ofc.). Added new theme in „Theme Manager“ inside backend with following setting: Extension of: „Responsive“ and saved it. After that i activated the copied theme and „theme manager“ sudennly stopped displaying themes. I tried setting back through mysql template_id to 23 and document_template_id to 22 Although that didn’t helped. Taking fire, need assistance. 
Best regards :thumbup:
Hello community :shopware: i managed to fix that issue, i just removed whole theme order and deleted cashe from web folder. Best regards :thumbup: