Some Chinese characters disappeared in version 2.4.15

[KoishiNolen]

Describe the bug
When there are more than 200 Chinese characters in a card, minimize the software, click on the toolbar, or just click everywhere in the paragraph, and the end characters may disappear.

At this time, the text is still there, but it can't be seen. After a few clicks on the missing paragraph, it will reappear. But if you accidentally change something else, the invisible paragraph will really disappear.

It happened twice last night. Today I tried it and found out but still can't understand the principle. Only when the number of Chinese characters is large, it may appear.

Software info:

• OS: [Windows 10]
• Gingko Version [e.g. 2.4.15]