Highly available cluster with multiple nodes

We are trying to set up a highly available Atlantis cluster with multiple nodes for prod environment and currently testing with two nodes behind a load balancer. In order to have the nodes with the same data/status we deployed Atlantis data folder as a common file share (Azure files) and mounted this share to both nodes, but unfortunately both nodes start to fail and send application exceptions that I attached.

Questions: Can the same set of data files shared among multiple Atlantis server instances as we envisioned? Is this issue due to specific file locking mechanism of Atlantis? Can this issue fixed by any code change or this is not easily achieved by smaller amount of code change. We have the intention to put development effort into it if it is easily achievable. Generally, what is the advise/best practice in order to have a highly available Atlantis environment with multiple nodes?