Multiple calls to a Stored Procedure (e.g. from a loop) from another Stored Procedure crashes the database server (i.e. the MariaDB Windows Service stops running). The crash seems to occure on the second call to the inner Stored Procedure.
This problem has been present in the latest releases of 10.4, and also in the new 10.5.4 .
MariaDB 10.3 is Ok though.