I often get the it bugged card after watching adv.
I noticed u are allowed to get 1 more card by watching adv video up to 5 times in row.
After it u shouldn’t be able see the message asking u to watch a vid to get 1 more card. BUT sometimes system glitchs, as it forgots u already saw adv vid 5 times, so system allows u to see video but at end of it the game system realize u already reach the limit and it shows u a bugged card like in main thread post photo is…
(@android game users) i noticed u can watch up to 4 adv vids for getting free tokens, up to 5 adv vids to get 1 more card at silver box.
U can try all of this about each 6 Hours.
I’m usually do it the 1st time at day i open mechs’ app, in the middle of my day and before going sleep.
I’m usually allowed to use adv bonuses.