Why my ios only share my own app screen, not share other app screen

hi Carson
I have more information about this issue. in new sdk, I always get this log and sharing video will stop after about 10s once this log print out.

2020-05-19 21:32:07.669911+0800 symeet[11315:515980] audioSessionDidInterruptNotification 1

[4.4.57220.1211] it’s ok
2020-05-19 21:24:51.593105+0800 symeet[11278:513101] enter onClickShareScreen >>
2020-05-19 21:24:51.596169+0800 symeet[11278:513101] RPScreenRecorder.available return NO
2020-05-19 21:24:51.612507+0800 symeet[11278:513101] 开始共享屏幕
2020-05-19 21:24:52.113608+0800 symeet[11278:513101] trigger button
2020-05-19 21:27:50.485975+0800 symeet[11278:513101] WF: === Starting WebFilter logging for process symeet
2020-05-19 21:27:50.486073+0800 symeet[11278:513101] WF: _userSettingsForUser mobile: {
filterBlacklist = (
);
filterWhitelist = (
);
restrictWeb = 1;
useContentFilter = 0;
useContentFilterOverrides = 0;
whitelistEnabled = 0;
}
2020-05-19 21:27:50.486212+0800 symeet[11278:513101] WF: _WebFilterIsActive returning: NO

[4.6.21666.0428] always breakout
2020-05-19 21:31:17.142106+0800 symeet[11315:515980] enter onClickShareScreen >>
2020-05-19 21:31:17.142886+0800 symeet[11315:515980] RPScreenRecorder.available return NO
2020-05-19 21:31:17.153410+0800 symeet[11315:515980] 开始共享屏幕
2020-05-19 21:31:17.654527+0800 symeet[11315:515980] trigger button
2020-05-19 21:32:07.669911+0800 symeet[11315:515980] audioSessionDidInterruptNotification 1