I would go ahead and post them again just to be safe. Usually I leave them posted no more than a week at a time. After that it can start getting gross and they need to be cleaned and changed.
I'm not sure how short your crop is but hopefully you were expecting months of taping vs 1-2 sessions of taping. Unless it's a very short military crop, they usually need a few months of taping at least.I took the tape off my puppy's ears after 10 days of posting. This was the first time they had been taped and posted. Once I removed the tape they stood great. Its been 3 days and I can tell they are relaxing more, but aren't flopping yet, he can still hold them erect. I will probably need to post them a second time and was wondering if I should do it for another 10 days or more or less than that. 10 days was what my vet recommended for his inital posting. Thanks a lot!