I did not use EI actively for a year. Now I found, that the latest version has problem with Czech letters.
When I rename Post map Wells to "všechny vrty", I close it and re-open, the wells in post map disappear and the czech letters in the postmap title in Plot control are replaced by ? signs.
Czech latters in Plot Control, Text in the map have the same problem.
(Předpolí NOT P?edpolí; kys. mléčná NOT kys. ml??n?; směr proudění NOT what you can see on the map) It could be a problem also with czech letters in the name of wells.