I only have one collectible selected not two. This is not the first time I have noticed this issue, I think it’s either because it’s in two loadouts or two different heroes it says there are 2 collectables selected.
I noticed this as well and can confirm that the amount of collectables is the product of collectables and loadouts.
For me it said 4 collectables were present in 4 loadouts across 2 heroes.
Like you it was only 1 item.
Grabbed & shared 
thanks for sharing!
Jeto - Support Human 
@shmaunpq saw your comment in the 2.2 thread, I repro’d this on my account again, updated the report and will bring it up with the team this morning