Hi! Thanks for reading! (I hope you do!). I'm pasting here the email I sent to Whatsapp support
Recently I updated my S5 G900P to Nougat 7.1.2, using Resurrection Remix
ROM 5.8.5 for S5 sprint. It happens often (about 95% of times) that I
can't send voice messages, it may crash to whatsapp menu as soon I press
the microphone button or after 3-4 seconds (the same to whatsapp menu).
1% it happened the whatsapp completely crashed to android menu, the rest
4% only the 4 seconds limit is overcomed and the message is sucessfully
I know I'm using a custom ROM and Whatsapp clearly shows possibile
uncompatibilities after installation, but anyway you should consider to
correct this problem, thank you. Yes I have the latest version of Whatsapp.
As well I'll notify to the creators of the ROM.
Unfortunately there is no official stock Nougat 7.1.2 ROM for Samsung
S5, and I'll not downgrade to 6.01 just because of this issue. I'm sure
it will be solved in future