Of course I can't talk for the other users, but ILS works fine for me at EKCH, all runways. It is only FMC/MCDU that doesn't auto-fill the ILS frequency. I just put it in manually and all is well. I have this problem with most custom airports, both paid and free. However, I have seen a few that doe...

Just registered to say that I have the exact same issue, tried both runway 22R and 22L with no success. Have no such issues with default airport nor any of the other addon airports I own. Playing on MSFS btw