LDAC doesn't work on iode android 14 GSI

I installed iode android 14 GSI on xperia 10 V, but LDAC option is grey on the bt audio codec list. Both my earbuds and the phone supports LDAC. How can I enable it? Does iode gsi not support LDAC?

Basically iodéOS 5x GSI supports Digital-to-Analogue Converter (DAC). But LDAC™ is an audio technology via software codec from Sony, incompatibilities cannot be ruled out.

Try in ‘Phh Treble Settings’ > Misc features > Bluetooth > Bluetooth workarounds.