I've just upgraded from SE2015 to 2019 and projects in "Projects" tab appear in strange order: instead of being simply ordered by project name, as they are in SE2015, in SE2019 I see 2 consecutive alphabetic sequences, one after the other, eg.: ProjA1, ProjB1, ProjC2 ..., ProjA2, ProjB2, ProjC1... Cannot see any pattern as to which projects end up in which sequence.
When I open the same workspace in SE2015 it behaves as expected, so this seems to be a bug specific to a newer version.