[READ] Step 1: Are you in the right place?

Yes

[REQUIRED] Step 2: Describe your environment

• Xcode version: 10.2
• Firebase SDK version: 5.20.2
• Firebase Component: InAppMessaging + InAppMessagingDisplay
• Component version: 5.20.2

[REQUIRED] Step 3: Describe the problem

After updating to 5.20.2, InAppMessaging no longer appears.
I used a custom event for the trigger and specified "1 time per device for this campaign" as the display frequency.
Event transmission is successful (confirmed with DebugView), but InAppMessaging is not displayed.
If you change the display frequency, it will not be displayed as well.

InAppMessaging is displayed correctly if it is not a custom event but a default event (for example, on_foreground event).

It used to use Firebase SDK 5.13.0 before updating it, and was able to display correctly in that version with the same settings.

Thanks in advance!