Hello.Thanks. fully understand. I try not to use macs where possible. And I appreciatye having to stick to stable release, which is why I was instrumental in Adobe not immediately removing access to previous versions when you update! When pressing I to go to layer Inpoint, (or O to go to Layer outpoint), often, but not always, the vertical line that extends from the Timeline Marker disappears. Toggling I and O to move to the end and back, makes it visible. This has been a known bug for at eleast ten years, but it never used to come back at all. What is interesting about both these behaviours is that communication triggers for the UI differ based on mouse or Keyboard navigation, rather than the final state.
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