Arrows shot horizontally into a field of upward bubble columns will permanently act like a drop on the bubble surface, if they cannot hit any solid block. Pickup won't be possible, because it's still a flying object.
Unsure, if this will be considered as correct behaviour or as a bug.
Thank you for your report!
We're actually already tracking this issue at MC-125757, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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