Not fixed as of today. Possibly reverted somehow?

You must return the length of the resulting jump as a string in the following format:

    Jump < 10: "X metres: He's crap!"
    Jump > 10 & < 25: "X metres: He's ok!"
    Jump > 10 & < 50: "X metres: He's flying!"
    Jump > 50: "X metres: Gold!!"

Fixed, thanks

Thanks for the advice. Do these fit the bill, so to speak?

Test.assertEquals(timeConversion(9204), '09:24 am', '9204 minutes should convert to: 09:24 am');
Test.assertEquals(timeConversion(4911), '09:51 am', '4911 minutes should convert to: 09:51 am');
Test.assertEquals(timeConversion(2606), '07:26 pm', '2606 minutes should convert to: 07:26 pm');
Test.assertEquals(timeConversion(6201), '07:21 am', '6201 minutes should convert to: 07:21 am');
Test.assertEquals(timeConversion(515), '08:35 am', '515 minutes should convert to: 08:35 am');
Test.assertEquals(timeConversion(909), '03:09 pm', '909 minutes should convert to: 03:09 pm');

1. When comparing two values that are not booleans, it is better to use Test.assertEquals() than Test.expect() as it aids in debugging.
2. I see that you have a good amount of fixed tests (12) but you still need random test cases

Coffeescript Translation (https://www.codewars.com/kata/time-conversion-minutes-to-12-hour-clock/forks/coffeescript)

You will find the following translations:
Ruby here
Crystal here
CoffeeScrit here

Jump < 10 = 'X metres: He's crap!'
Jump > 10 && < 25 = 'X metres: He's ok!'
Jump > 10 && < 50 = 'X metres: He's flying!'
Jump > 50 = 'X metres: Gold!!'

should be

Jump <= 10 = 'X metres: He's crap!'
Jump > 10 && <= 25 = 'X metres: He's ok!'
Jump > 25 && <= 50 = 'X metres: He's flying!'
Jump > 50 = 'X metres: Gold!!'