Suggested fee doesn't seems to work.

[Transisto]

Why isn't the fee recommended for next block confirmation increase when, for example, there is no block for 1.3 hours and the following happen ?

https://i.imgur.com/NhwoNJq.png

[jlopp]

This is more a question of how the underlying fee algorithm works, which is complicated. You can learn about the old (and new!) fee estimation algorithms here: https://blog.bitgo.com/the-challenges-of-bitcoin-transaction-fee-estimation-e47a64a61c72