Reboot after AV/IPS update every evening

[FortiLearner]

Hi,

I cannot seem to find a thread on this.

The firewalls are in HA but 1 firewall seems to reboot after our daily automatic AV/IPS update.

FGT is on 6.2.3

Crashlogs,

319: 2020-05-08 01:56:30 IPSA self test failed, disable IPSA! pid = 269 322: 2020-05-09 01:09:40 IPSA self test failed, disable IPSA! pid = 269 323: 2020-05-09 01:13:36 IPSA self test failed, disable IPSA! pid = 273 324: 2020-05-09 01:13:38 IPSA self test failed, disable IPSA! pid = 273 325: 2020-05-09 01:13:39 IPSA self test failed, disable IPSA! pid = 273

Has anyone experienced this?