blight completed in map but most blight chests don't appear

Hi,
I complete the blight in map beach T16 (success: blight not destroyed) but I can't see most of the rewards blight chests, they are simply not there. I can only see one reward chest openable but with a big icon (that I can get) and I see that the game thinks that not all lines are finished (but they are as I get the main blight reward): The lines and the towers still appear and the game thinks that some lines are not finished.
It happened several times this league for me, very frustrating after a close blight. It seems to be on beach map (recorded 2 on this map), not sure if it's only there.
screenshots of 2 different bugs reproduced in:
https://imgur.com/a/H0cMeof
It's not consistent, I just did a blight encounter in beach map T16 without the bug.
Thanks for your assistance!

Hi ! I'm having the exact same bug right here. I'm only getting salvaged towers at the end of a blight encounter on a regular T16 map. No chests at all.

Does anyone have a clue about this problem ?