IES file mixed up with other

Let’s say i’ve set a group of ‘spotlight’ with an IES file name of 1.ies , then when i start to set a second group of light with other type of ies files e.g 2.ies , the first group of light that was set with 1.ies mixed up with the new 2.ies file… please help me

Hi @carter.toh98

May I know where you grouped these lights? Can you perhaps record a video of your process? Thank you.