No coloered button (v2.3.5)

Last night, updated to Cross DJ Pro 2.3.5.
"What's new" of Cross DJ Pro at Play Store shows
"If an FX, loop, EQ or sample is active, its tab button gets colored."
If I remember correctly, before updating to 2.3.5, it worked properly as shown in the photo at Play Store.
But after updating to 2.3.5, it doesn't get colored (only white outline).
Please let me know it is the new specification of 2.3.5 or it happens only with my phone (Asus Zenfone C ZC451CG), etc.
Cheers,
"What's new" of Cross DJ Pro at Play Store shows
"If an FX, loop, EQ or sample is active, its tab button gets colored."
If I remember correctly, before updating to 2.3.5, it worked properly as shown in the photo at Play Store.
But after updating to 2.3.5, it doesn't get colored (only white outline).
Please let me know it is the new specification of 2.3.5 or it happens only with my phone (Asus Zenfone C ZC451CG), etc.
Cheers,