12D5 bug for eth. items taken out w/o using keys

[unifreshman]

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Type of problem:
Bug

Map Version:
1.2D(5)

Description of the problem:
*we play game hosted via ENT
1)Died in 4-man-keyless bf at floor 26 with DP gained 40+
2)After revived out side, green & blue keystones which grabbed by dudu dropped at ground normally
3)After revived out side, Ethereal Hawk Mask which be grabbed by dudu bagpack(F2) (at floor 26)dropped at ground abnormally
(colletibles grabbed at other lower floor didn't be taken out)
video:
https://www.youtube.com/watch?v=Pb8s8nuarvw&feature=youtu.be
p.s
1)video starts at bf floor 26
2)in video didn't make the camera on me when grabbed the eth. item, due to the elapsed time is over 3 hours, i dont want to re-play the game replay file

(bugs only) How to reproduce the bug (if possible):
Unknown

(desyncs/disconnects/crashes only) which 3rd party tools were used (listchecker, hostbots, maphacks, etc.)? Which OS were you running?
N/A

(crash only) Crash log:
N/A

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