royal flush detection with 4 fingers

[solar lantern]

k q j 10 same suit makes a royal flush

however k q j 10 4 suited does not make a royal flush it makes a straight flush even though it contains the same royal flush

for some reason it did not let me screenshot

it let me take that one but computer just decided no

trust me when i add 4 of diamonds it becomes straight flush

[half schooner]

Hand that contains a flush and a straight is a straight flush.
A straight flush with no stone cards and all scoring cards' rank ≥ 10 is a royal flush.