Why does my FTimeline only tick twice?

Development Programming & Scripting
1

I assigned a delegate, called TimelineDeal, to call after each timeline tick but this delegate only gets called twice. I am calling TickTimeline() in the actor’s tick. My timeline is set to play for 4 seconds, but whether it’s 4 seconds or 4000 seconds, the result is the same. Considering the timeline should tick every time the actor’s tick is called, I don’t know why it would stop after 2 times. Here is my code:

##.h

 FTimeline TDeal;
 FOnTimelineEvent TDealUpdate;
 int32 TimelineDealCounter;

##.cpp

 ASCard::ASCard(const FObjectInitializer& ObjectInitializer)
 {
      PrimaryActorTick.bCanEverTick = true;
      TDeal = FTimeline();
      TimelineDealCounter = 0;
      ...
 }

 void ASCard::Tick(float DeltaTime)
 {
      TDeal.TickTimeline(DeltaTime);
 }

 void ASCard::Dealing()
 {
      TDealUpdate.BindUFunction(this, FName("TimelineDeal"));
      TDeal.SetTimelinePostUpdateFunc(TDealUpdate);
      TDeal.SetLooping(false);
      TDeal.SetTimelineLength(4.f);

      TDeal.PlayFromStart();
 }

 void ASCard::TimelineDeal()
 {
      TimelineDealCounter++;
      GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, FString::FromInt(TimelineDealCounter));
      ...
 }

Dealing() is called on this actor from my GameMode class.

2

This may have something to do with it, but I still don’t see how it would be getting called more than twice in one frame, given that it’s only called once in tick.

3

Tried checking GetPlaybackPosition this two times?

4

The only way I can get it to continuously play is by adding:

 TDeal.Play();

at the top of TimelineDeal(). However, doing this seems to make it ignore the length. It will just run forever. It also seems redundant to add TDeal.Play() considering I already set it to PlayFromStart().