Display of line handles while editing is different from expected
OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 188.8.131.5299, revision: 43c5553
When you select a line, both start and end handles are highlighted. This is a change from previous versions in which only the end handle was highlighted—as shown below.
(Example from MS 2.3.2)