SQLite is bugged with distributed transactions: disable distributed tests #1506
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SQLite does not actually implement two phases commit and has threading issues when participating into a distributed transaction.
https://system.data.sqlite.org/index.html/tktview/5cee5409f84da5f62172
An example of such threading issue is available here. This is a build from the period of time where the TeamCity build agent was dual cored. It seems the trouble does not occur (or way less) on single core instances.