苹果设备用户看不到群消息的请进行以下操作：
For Apple device users who cannot see group messages, please do the following:
❶ 打开 Telegram 网页版 (https://web.telegram.org/) 并登录账号。
Open the Telegram web version (https://web.telegram.org/) and log in to your account.
❷ 登录后点左上角菜单 ，再依次点击 Settings → Privacy and Security → 勾选Disable filtering。
Log in and click on the menu in the upper-left corner, then sequentially click Settings → Privacy and Security → Check Disable filtering.
❸ 等待一会儿重新启动 APP 即可（或者重启设备）。
Wait for a moment to restart the app(Or restart the device).
For Apple device users who cannot see group messages, please do the following:
❶ 打开 Telegram 网页版 (https://web.telegram.org/) 并登录账号。
Open the Telegram web version (https://web.telegram.org/) and log in to your account.
❷ 登录后点左上角菜单 ，再依次点击 Settings → Privacy and Security → 勾选Disable filtering。
Log in and click on the menu in the upper-left corner, then sequentially click Settings → Privacy and Security → Check Disable filtering.
❸ 等待一会儿重新启动 APP 即可（或者重启设备）。
Wait for a moment to restart the app(Or restart the device).