When landing on isolated island i hit the manuall warp button while it was still counting down.
It was at 0:15 (of the manuall cooldown) as I hit the warp button. Then I hear the warp alert sound, but as the timer hits 0:00 it continues to count down to -1:59:59.
The warp button was probably meant to be disabled as the manuall warp was still cooling down.
Triggering warp during the cooldown breaks it and requires a save load.