Timeline behavior:
- Natural end of playback now clamps to Duration and holds values there
(no auto-rewind, no simulation reset) — symmetric between editor and
gameplay. New Restart button does the rewind+replay sequence explicitly.
- Pause now freezes character movement too (new SetSimulationPaused on
the PlayerController stops AI ticks without restoring saved transforms
the way StopSimulation does).
- Simulate toolbar button is wired through the timeline: with at least one
track, it toggles Play/Pause; without tracks it falls back to direct
StartSimulation/StopSimulation. Label stays "Simulate"/"Stop" so it
doesn't duplicate the timeline panel's own Play button.
- SetKeyTime re-sorts keys; clicking a key selects the animated actor
exclusively (ClearSelection first) so splines release their handles.
- Seek now invalidates LastAppliedValues: a manual property edit between
two seeks used to leak onto the next key because the cache made the
next seek skip the write.
- Keyframe colors are saturated: vivid blue / orange / green / yellow
instead of the washed-out pastels.
Scene load robustness:
- New LoadActorClassRobust chains TryLoadClass, LoadPackage+retry,
LoadObject, StaticLoadClass — covers cold BP post-load races that made
actors silently fail to spawn on the first PIE of a session.
- Failed class loads and null-spawn actors now log Error with class path
and location; a Warning/Log recap lands at the end of every load.
- Actors that end up hidden or invalid after the pipeline get their own
Warning/Error lines for post-mortem diagnosis.
Base level handling:
- New bIsDefault flag on FPS_Editor_BaseLevelEntry. The entry marked
default is loaded automatically at editor startup (when no pending
scenario is queued) and as fallback when a scenario saved without a
base level ("Unfiled" folder) is opened.
- Removed the hardcoded "None" option from the base level popup — the
project defines its own default entry instead (e.g. renamed to "None").
- Previous behavior of LoadBaseLevelAsSublevel("Unfiled") is gone; the
bogus sublevel load used to leave the loading screen stuck.
Spline visuals:
- SetRenderCustomDepth is now off by default and only turned on while the
spline is selected — project outline post-process materials no longer
highlight every loaded spline.
- ImportFromCustomProperties forces SetHandlesVisible(false) and
SetSelected(false) after setting points (both PS_Editor and
PS_BehaviorEditor versions) so loaded splines start in the deselected
visual state.
AI in editor:
- Spawned pawns now get their AI disabled synchronously right after
SpawnActor (in addition to the existing next-tick fallback) so the BT
can't drive the character for the 1-frame gap between spawn and timer.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
j.foucher
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