Hi Yana,
It seems the sequential work flow is working fine with h2 db.
I have not tested with parallel gateway.
The issue exist with both 7.8.0 and 7.9.0 release of camunda
It will be great if we can get some quick suggestions on this. Because we are totally blocked and none of the workflow is executing with MariaDB 10.2.x release.
Thanks
Senthil