Reading indicator disappeared on iOS13 and later devices

Unity Engine
,
1

We are developing apps for iOS with Unity.
The reading indicator was displayed using “Handheld.SetActivityIndicatorStyle ()” during communication and loading of scenes (the one that rotates round and round).

However, the indicator was not displayed when checking with iOS13.2.2 terminal.
It is displayed that the OS version is an old terminal.

The indicator setting is “White Large”.
How can I display the indicator on iOS13 or later devices?

Unity2018.3.13f1

2

I have the same issue: the Activity Indicator doesn’t show up after I upgrade to iOS 13. My Unity version is 2019.2.2f1.