Same cases against production sources 19.10 and 19.11.
Assertions report observed failures and continue; CASE COMPLETED is not a success assertion.

BFI 1.14.19.10
Reload 1:1 preset on 60 Hz: multiplier=0, frequency=30
OBSERVED FAILURE: selectable 1:1 preset discarded at 60 Hz
OBSERVED FAILURE: unchanged Apply erased preset or rounded its frequency
CASE COMPLETED: unchanged Apply preserves preset, precision and engine; a real edit applies manual frequency
OBSERVED FAILURE: preparation reported as enabled playback
CASE COMPLETED: status distinguishes preparation from first dispatched light and follows the transition
OBSERVED FAILURE: minimized settings did not reveal error
OBSERVED FAILURE: finished trial did not restore minimized settings
CASE COMPLETED: errors and completed trial restore minimized settings
OBSERVED FAILURE: monitor selection executed obsolete start request
CASE COMPLETED: monitor selection cancels start before its UI notification is handled
OBSERVED FAILURE: old cleanup overwrote newer stop/error text
CASE COMPLETED: deferred worker cleanup preserves newer stop/error message
Behavioral failures=7; own offscreen windows, no optical measurement.

BFI 1.14.19.11
Reload 1:1 preset on 60 Hz: multiplier=2, frequency=30
CASE COMPLETED: unchanged Apply preserves preset, precision and engine; a real edit applies manual frequency
CASE COMPLETED: status distinguishes preparation from first dispatched light and follows the transition
CASE COMPLETED: errors and completed trial restore minimized settings
CASE COMPLETED: monitor selection cancels start before its UI notification is handled
CASE COMPLETED: deferred worker cleanup preserves newer stop/error message
Behavioral failures=0; own offscreen windows, no optical measurement.
