I am using a Galaxy Neo 5S and Android 6.0.1
Blocker:
1) Jordimandus unbeatable
When encountering Jordimandus, the random monster is summoned. Once beaten, the monster is banished and Jordimandus disappear, ending the exploration. On next exploration, you encounter Jordimandus again with the same effect.
Minor:
2) Discussion text not appearing
When there is a discussion between heroes and NPC, no text appears.
3) Adventure rules unreadable
When choosing the starting location of heroes, the adventure specific rules appears blurred. Each character is replaced by a pink rectangle.