android 10 custom rom volte bug anyone else ?

Jan 5, 2016
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hello everyone
I have tried some custom ROMs based on android 10 and everyone has the same issue with volte.
when you boot the device with any a jio sim for the first time it will show volte if inserted in sim slot one
if inserted in sim slot 2 the device won't be able to even show the option for volte in second sim slot
if you take the sim out and reinsert in sim slot one then the device will show the option for volte but it wont be able to connect to any network
but if i insert my idea in slot one it will get network and show volte which is quite ironic as idea sim is a 2g/3g sim card
even after rebooting the hpone it will show the network injio but wont show volte in crovos
and in havoc as well similar behavior is repeated but it won't show network in havoc even after reboot in single sim mode
but using idea sim with it the idea sim has network always
is there anyway to fix it
another issue in havoc and pe is unable to deactivate any sim it says to deactivate Simcard remove it
can anyone tell me why this happens and how to fix it if possible
i was previously on havoc 2.9 where this issue is not there