No base multiplier in boss rush

Guys. i just finished a boss rush mission and i show this Results.
I got question if i finished boss rush know this Answer.
1.Why no base multiplier?
2.Can InterAction Fix this?

After killed boss, you will get some keys. On earlier version, boss rush had base multiplayer but community said Boss Rush gave too much keys. So IA removed base multiplayer for Boss Rush

That’s correct.
IA didn’t fix that.

It’s not a bug since IA removed that feature based on the community opinion, so they don’t have to fix it