Weird behaviours of buttons in the replay scene

[Richard969]

Screenshot with unintended behaviors (Image(s) Here):

If you can reproduce it, write the steps here. If you can't, try to describe what causes the unintended behavior, like pressing a key/button (Details Here): 当没有回放时导入回放，按钮没有显示。（预期行为：显示播放、删除等按钮） 只有一个回放时删除回放，按钮没有隐藏。（预期行为：隐藏播放、删除等按钮）

english ver. (google translate dont read)

import replay when there is no replay, buttons are not showing. (expected behavior: hide button for play replay, delete, etc.)

delete replay when there is only one, buttons are not hidden. (expected behavior: hide buttons for play replay, delete, etc.)

[Not-A-Normal-Robot]

protip: use DeepL instead of google translate, it tends to be more accurate 提示：使用DeepL而不是谷歌翻译，它往往更准确。