Random Push/Pull force being acted upon character when moving

Development Character & Animation
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1

Hello, a bug came up in my project that came out of nowhere and I am having trouble fixing because I have no idea what might be causing it. Here’s the issue in this .gif:

Basically, when I move up, it’ll pull in random directions. Same when the character is falling. I tried different keyboards, but I still get the same issue.

I even tried moving around in minimal default, which had no problems before, now I am having the same issue.

Here is the character movement code:

void APlayerCharController::MoveRight(float Delta)
{

	APlayerCharacter* const PlayerRef = Cast<APlayerCharacter>(UGameplayStatics::GetPlayerCharacter(GetWorld(), 0));

	if (Delta != 0.0f && PlayerRef->CanAct())
	{
		// find out which way is right
		const FRotator Rotation = GetControlRotation();
		const FRotator YawRotation(0, Rotation.Yaw, 0);

		// get right vector 
		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::Y);
		PlayerRef->AddMovementInput(Direction, Delta);
	}
}

void APlayerCharController::MoveForward(float Delta)
{
	APlayerCharacter* const PlayerRef = Cast<APlayerCharacter>(UGameplayStatics::GetPlayerCharacter(GetWorld(), 0));

	if (Delta != 0.0f && PlayerRef->CanAct())
	{
		// find out which way is forward
		const FRotator Rotation = GetControlRotation();
		const FRotator YawRotation(0, Rotation.Yaw, 0);

		// get forward vector
		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::X);
		PlayerRef->AddMovementInput(Direction, Delta);
	}
}

Any idea what might be causing this issue, or if there is some setting I may have accidentally checked that causes something like this? Any help would be appreciated.