This seems to be happening in 4.19.
Steps to reproduce:
1 empty persistent volume
2 floor in level streaming volume A
3 Actor placed in level streaming volume B, that has several level streaming volumes, one of which is a load, and one of which is load and viz.
in either PIE or build, player starts play, walks over the ground in A. into level B’s ‘loading only’ level streaming volume. and then into level B’s level streaming ‘viz volume’. Actor in B does not tick
But, leaving b and re-entering several times makes B tick.
Suggesting activation of ticking is not perfectly synchronized with the action of loading actor maybe?
not this bug is prevalent tin an open world area with several levels for lightning and detail objects loading and unloading.
Thanks.