Bug: not able to progress Conquest Boss Sector 3

I am not able to progress feats in Conquest Boss Sector 3 since there are no buttons to perform actions.

I have tried different teams:

• JML team
• JMK team
• Veers team
• Iden team
• ... many others

and with different devices:

• Samsung Galaxy S8
• Samsung A53
• Bluestack Pie 64bit instance
• Bluestack Nugat 64bit instance

I have spent a lot of Conquest energy for that as the only thing I can do when the time ends is to retreat from the battle.