Tu bug

I am trying to rotate between today's all day events using this code.

$ci(title, "a" + tu(seq, 1/4, 0, 2), a0d)$ 

I have 2 set for today and it should go 0101 but it is going 01 blank 01 blank. I am using the lastest stable play store version. Someone tested this in 3.38 and it worked ok in that version.