Translated strings not displayed

For all translated languages, some strings in .ts file are not displayed, only the English one is shown.
Here is a list of somethings I have seen...

1) Right click on a Vertical Frame : Dialog Box is in English
2) Right click on an Horizontal Frame : Dialog Box is in English
3) Right click on an Akkolade : Dialog Box Title is in English
4) Right click on an Key Signature : Dialog Box Title is in English
5) Right click on an Time Signature : Dialog Box Title is in English
6) Right click on a Dynamic : Dialog Box is in English
7) Right click on a Rest : Dialog Box Title is in English
8) Right click on a Tempo : Dialog Box is in English
9) Right click on a Text : Dialog Box is in English
10) Right click on a Hairpin : Dialog Box is in English
11) Right click on a Layout Break : Dialog Box Title is in English
12) Right click on a Slur : Dialog Box Title is in English
13) Right click on an Articulation : Dialog Box is in English
14) Right click on a Bar Line : Dialog Box Title is in English
15) Right click on an Accidental : Dialog Box Title is in English
16) Right click on a Stem : Dialog Box Title is in English
17) Right click on a Beam : Dialog Box Title is in English
18) New Score Wizzard : Add instruments : Clef name is in English
19) New Score Wizzard : Add Key Signature : Key is in English
20) Preferences : Text Tab : The 2 "replace...By" are in English
21) Symbols Palette : Symbols are in English.

MuseScore r1723 Windows Prerelease