Characters like č ć ž š đ use a fallback font instead of the original one. I believe this issue was not present in the v1. Fonts such as Lato or Montserrat definitely support accented characters, so I think this is a bug.
\cvevent uses \cdot to enlist items. This has the drawback that it is not positioned at the center of a capital letter. Maybe using the itemize environment would help (\cdot could be simulated by decreasing the size of the bullet). Alternatively, the height of the \cdot could be raised.