Inconsistent behavior of copy / paste for small / colored notes on Guitar + TAB

OS: macOS High Sierra (10.13)
Arch.: x86_64, MuseScore version (64-bit): 3.6.2.548020600
revision: 3224f34

Step to Reproduce:

-See attached score (The score is just before step 4)
1.Prepare Guitar + TAB Score
2.Input notes on standard staff
3.Make notes small on standard staff and make TAB numbers Red
4.Select only standard staff then type R for copying it to next measure

Result:
Both standard and TAB become small and black

If I change step 4 to;
Select both standard staff and TAB then type R

Result:
Both standard staff notes and TAB numbers become normal note size and Red

My hope:
In both cases, it copy exactly as it is.
standard staff notes are small, TAB numbers are Red