to me that sounds like coupling, I think you are close, but not quite close enough.
another suggestion /question for you.
have you modded your blue cloner?
it will improve your read and write ability.
also, what mode is your “clock in card.”
if you have the DT Blue Cloner, it is limited to EM, HID and AWID…outside of that you will HAVE to use the proxmark
on PM3
Can you / have you tried a generic
lf search
Rather than a specific lf em… etc
it really is quite difficult to get a good coupling, even millimetres matter 
Once you finally get it
DO NOT MOVE 
Run multiple searches and when you get consistent reads, try your write.
remain still.
now that you have used the blue cloner, you will need to use the password in your proxmark.
Proxmark stuff I need to check when I am back at a computer
I think this is the latest command syntax is
the t addition on the end is for test mode, which is a @fraggersparks suggestion that has worked for others in the past
lf t55xx write b 0 d 000880E0 p 51243648 t
or
lf t5 write b 0 d 000880E0 p 51243648 t