I get that with G101 (inerior plastics soap) so i just water it downWas given loads of Chemical Guys cleaning products and 90% of them have been brilliant (and smell like you want to eat them) but the Interior detailer which at first looked good leaves white streaks if rain manages to get in through the window onto it.
Gave the interior a clean up with Halfords own Dash & Trim cleaner, heard it was good and for £4 worth a go. It's loads better and took off all the old residue from the Chemical Guys stuff.