Khala Node get stuck at a block height and Pherry fails to connect to node #1070
Description
I have two nodes, both with same hardware (Intel NUC7PJYH2) and both of them suffer the same behaviour.
Both nodes get stuck at a block height (Khala network, KSM syncs well) and Pherry restarts because it fails to connect to node. It's very random, cos sometimes I restart the processes and all works fine during several hours (12h o 14h) but sometimes I need to restart processes 2, 3 or 4 times until I get all working fine. I have tried reinstalling both nodes from scratch, using databases synced from zero, with and without KSM snapshot and even copying databases from other nodes that are running fine.
NODE1: It has been running smoothly for months, but after a coolingdown period, begins to show the issue.
NODE2: It hasn't been running ever, it's a brand new machine installed for the first time.
I have attached a file with logs (from processes start until the fail) and system info from both nodes. Please, don't hesitate to ask for any further info you need.