[Xiaomi Redmi 5 ROMs, Kernels, Recoveries, & Other ] M4rkusX:
I used the newest (at that time) weekly fw package for rosy from here. Specifically fw_rosy_miui_HM5Global_9.1.17_5a2026ea16_8.1.zip.

Yesterday I saw this over and over again in logcat. Dont know what influence it has, because everything seems to work?

01-25 16:48:03.329 32554 32554 I imsrcsd : getAndroidPropValue : vendor.ims.modem.multisub.cap[2]
01-25 16:48:03.329 32554 32554 I imsrcsd : Uce Service HAL detected modemVersion[2]
01-25 16:48:03.329 32554 32554 I imsrcsd : Uce Service HAL loading lib-imsrcs-v2
01-25 16:48:03.330 32554 32554 F imsrcsd : imsrcsd.cpp:101] Loading RCS lib fails[dlopen failed: library "lib-imsrcs-v2.so" not found]
01-25 16:48:03.330 32554 32554 F libc : Fatal signal 6 (SIGABRT), code -6 (SI_TKILL) in tid 32554 (imsrcsd), pid 32554 (imsrcsd)
01-25 16:48:03.352 32587 32587 I crash_dump64: obtaining output fd from tombstoned, type: kDebuggerdTombstone
01-25 16:48:03.352 2829 2829 I /system/bin/tombstoned: received crash request for pid 32554
01-25 16:48:03.353 32587 32587 I crash_dump64: performing dump of process 32554 (target tid = 32554)
01-25 16:48:03.355 32587 32587 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
01-25 16:48:03.355 32587 32587 F DEBUG : LineageOS Version: '16.0-20190117-UNOFFICIAL-rosy'
01-25 16:48:03.355 32587 32587 F DEBUG : Build fingerprint: 'Xiaomi/rosy/rosy:7.1.2/N2G47H/V9.2.3.0.NDAMIEK:user/release-keys'
01-25 16:48:03.355 32587 32587 F DEBUG : Revision: '0'
01-25 16:48:03.355 32587 32587 F DEBUG : ABI: 'arm64'
01-25 16:48:03.355 32587 32587 F DEBUG : pid: 32554, tid: 32554, name: imsrcsd >>> /system/vendor/bin/imsrcsd <<<
01-25 16:48:03.355 32587 32587 F DEBUG : signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
01-25 16:48:03.355 32587 32587 F DEBUG : Abort message: 'imsrcsd.cpp:101] Loading RCS lib fails[dlopen failed: library "lib-imsrcs-v2.so" not found]'
01-25 16:48:03.355 32587 32587 F DEBUG : x0 0000000000000000 x1 0000000000007f2a x2 0000000000000006 x3 0000000000000008
01-25 16:48:03.355 32587 32587 F DEBUG : x4 7baedfd6ff637262 x5 7baedfd6ff637262 x6 7baedfd6ff637262 x7 7fffffff7f7f7f7f
01-25 16:48:03.355 32587 32587 F DEBUG : x8 0000000000000083 x9 e2233b99f979be14 x10 0000000000000000 x11 fffffffc7fffffdf
01-25 16:48:03.355 32587 32587 F DEBUG : x12 0000000000000001 x13 ffffffffffffffff x14 ffffffffff000000 x15 ffffffffffffffff
01-25 16:48:03.355 32587 32587 F DEBUG : x16 000000777cb6f2a8 x17 000000777caad110 x18 0000000000000001 x19 0000000000007f2a
01-25 16:48:03.355 32587 32587 F DEBUG : x20 0000000000007f2a x21 0000007fdf68cb08 x22 000000777c63c000 x23 000000777d2245e0
01-25 16:48:03.355 32587 32587 F DEBUG : x24 0000000000000000 x25 0000000000000000 x26 0000000000000000 x27 0000000000000000
01-25 16:48:03.355 32587 32587 F DEBUG : x28 0000000000000000 x29 0000007fdf68cae0
01-25 16:48:03.355 32587 32587 F DEBUG : sp 0000007fdf68caa0 lr 000000777caa1c3c pc 000000777caa1c64
01-25 16:48:03.357 32587 32587 F DEBUG :
01-25 16:48:03.357 32587 32587 F DEBUG : backtrace:
01-25 16:48:03.358 32587 32587 F DEBUG : #00 pc 0000000000021c64 /system/lib64/libc.so (abort+116)
01-25 16:48:03.358 32587 32587 F DEBUG : #01 pc 0000000000008180 /system/lib64/vndk-sp-28/libbase.so (android::base::DefaultAborter(char const*)+12)
01-25 16:48:03.358 32587 32587 F DEBUG : #02 pc 0000000000008cd4 /system/lib64/vndk-sp-28/libbase.so (android::base::LogMessage::~LogMessage()+724)
01-25 16:48:03.358 32587 32587 F DEBUG : #03 pc 0000000000002254 /vendor/bin/imsrcsd (main+1476)
01-25 16:48:03.358 32587 32587 F DEBUG : #04 pc 00000000000adbe0 /system/lib64/libc.so (__libc_init+88)