The bug is fresh, 15 November 2018 and it's opened.
The description is the following:
Two FPR 2130 devices install the ASA system and configure HA mode failover and the two devices have crashes, and it is determined that the ASA is crashing.
The know affected release indicated is 9.8(3.11).
There are not informations about workaround or fixed releases.
The behaviour seems not related to your problem.
Regards.