我昨天遇到了类似的情况，我认为这是 2016 年 8 月 8 日 iTunes 连接更新的结果，所有本地化语言都出现红色感叹号，没有其他信息.如果您从 2016 年 8 月 8 日开始遇到这种情况，可能就是这种情况.

我联系了 Apple 支持并最终提交了新版本，因为我填写了所有尺寸的屏幕截图.

虽然您可以上传最大尺寸的屏幕截图并在媒体管理器"页面重新使用"它以获得更小的尺寸.

Thats all it shows

I'm not sure whats wrong has it doesn't tell me.

it shows its linked to the language

I met the similiar situation yesterday, I thought that's result from the iTunes connect update August 8 2016, red exclamation by all localized language without others information. If you meet this situation from August 8 2016, maybe it's the case.

I contacted Apple support and finally submitted new version since I filled up screen-shots for all sizes.

while you can upload the maximum size screenshot and 're-use' it for smaller size at 'Media Manager' page.