Problem updating Linux driver from 11.6 to 11.7

Error upgrading from driver 11.6 to 11.7.

CentOS Linux release 7.9.2009 (Core)
Linux kernel 3.10.0-1160.2.2.el7.x86_64
Blackmagic_Desktop_Video_Linux_11.6.tar


As directed by the forum posts, I erased 11.6 as follows:

[root@swnode0 user]# rpm -qa | grep desktopvideo | xargs rpm -e
Stopping systemd services...
DesktopVideoHelper
Disabling systemd services...
DesktopVideoHelper
Unloading modules...
blackmagic
blackmagic_io
cat: /var/lib/rpm-state/desktopvideo/new-version: No such file or directory
[root@swnode0 user]#

Cards still in place:

[root@swnode0 user]# lspci | grep ackmagic
05:00.0 Multimedia video controller: Blackmagic Design DeckLink Mini Recorder
0a:00.0 Multimedia video controller: Blackmagic Design Intensity Pro
0e:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
0f:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
13:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
14:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
44:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
45:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
49:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
4a:00.0 Multimedia video controller: Blackmagic Design DeckLink Quad 2
[root@swnode0 user]#

Tried to install 11.7. No success...

[user@swnode0 x86_64]$ sudo rpm -ivh desktopvideo-11.7a12.x86_64.rpm
[sudo] password for user:
Preparing... ################################# [100%]
Updating / installing...
1:desktopvideo-11.7-a12 ################################# [100%]
Preparing new blackmagic driver for 3.10.0-1160.2.2.el7.x86_64 kernel...
Adding to DKMS
Building
Installing
Message from syslogd@swnode0 at Nov 19 14:19:43 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:1:103]

Message from syslogd@swnode0 at Nov 19 14:20:11 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:1:103]

Message from syslogd@swnode0 at Nov 19 14:20:43 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:1:103]

Message from syslogd@swnode0 at Nov 19 14:21:11 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:1:103]

Message from syslogd@swnode0 at Nov 19 14:21:39 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:1:103]

Message from syslogd@swnode0 at Nov 19 14:22:07 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:1:103]

CTRL-C did not recover.
System unstable.
Hard reset.

After bootup:

[user@swnode0 ~]$ BlackmagicFirmwareUpdater status
0: /dev/blackmagic/dv0 [Intensity Pro] 0x25 OK
1: /dev/blackmagic/io0 [DeckLink Mini Recorder] 0x55 OK
2: /dev/blackmagic/io1 [DeckLink Quad 2] 0x11b OK
3: /dev/blackmagic/io3 [DeckLink Quad 2] 0x11b OK
4: /dev/blackmagic/io5 [DeckLink Quad 2] 0x11b OK
5: /dev/blackmagic/io7 [DeckLink Quad 2] 0x11b OK
6: /dev/blackmagic/io2 [DeckLink Quad 2] 0x11b OK
7: /dev/blackmagic/io4 [DeckLink Quad 2] 0x11b OK
8: /dev/blackmagic/io6 [DeckLink Quad 2] 0x11b OK
9: /dev/blackmagic/io8 [DeckLink Quad 2] 0x11b OK
10: /dev/blackmagic/io9 [DeckLink Quad 2] 0x11b OK
11: /dev/blackmagic/io11 [DeckLink Quad 2] 0x11b OK
12: /dev/blackmagic/io13 [DeckLink Quad 2] 0x11b OK
13: /dev/blackmagic/io15 [DeckLink Quad 2] 0x11b OK
14: /dev/blackmagic/io10 [DeckLink Quad 2] 0x11b OK
15: /dev/blackmagic/io12 [DeckLink Quad 2] 0x11b OK
16: /dev/blackmagic/io14 [DeckLink Quad 2] 0x11b OK
17: /dev/blackmagic/io16 [DeckLink Quad 2] 0x11b OK
18: /dev/blackmagic/io17 [DeckLink Quad 2] 0x11b OK
19: /dev/blackmagic/io19 [DeckLink Quad 2] 0x11b OK
20: /dev/blackmagic/io21 [DeckLink Quad 2] 0x11b OK
21: /dev/blackmagic/io23 [DeckLink Quad 2] 0x11b OK
22: /dev/blackmagic/io18 [DeckLink Quad 2] 0x11b OK
23: /dev/blackmagic/io20 [DeckLink Quad 2] 0x11b OK
24: /dev/blackmagic/io22 [DeckLink Quad 2] 0x11b OK
25: /dev/blackmagic/io24 [DeckLink Quad 2] 0x11b OK
26: /dev/blackmagic/io25 [DeckLink Quad 2] 0x11b OK
27: /dev/blackmagic/io27 [DeckLink Quad 2] 0x11b OK
28: /dev/blackmagic/io29 [DeckLink Quad 2] 0x11b OK
29: /dev/blackmagic/io31 [DeckLink Quad 2] 0x11b OK
30: /dev/blackmagic/io26 [DeckLink Quad 2] 0x11b OK
31: /dev/blackmagic/io28 [DeckLink Quad 2] 0x11b OK
32: /dev/blackmagic/io30 [DeckLink Quad 2] 0x11b OK
33: /dev/blackmagic/io32 [DeckLink Quad 2] 0x11b OK

When DeviceConfigure SDK sample is used:

[user@swnode0 ~]$ ./DeviceList
DeckLinkAPI version: 11.7.0
No Blackmagic Design devices were found.

[user@swnode0 ~]$

I saw the following issue with DKMS. I do not know if it is related.

[root@swnode0 user]# dkms status
Error! Could not locate dkms.conf file.
File: /var/lib/dkms/blackmagic/11.6a26/source/dkms.conf does not exist.

[root@swnode0 user]# dkms remove blackmagic/11.6a22 --all
Error! The module/version combo: blackmagic-11.6a22
is not located in the DKMS tree.

[root@swnode0 user]# ls -l /var/lib/dkms/blackmagic
total 0
drwxr-xr-x. 4 root root 84 Nov 16 21:25 11.6a26
drwxr-xr-x. 3 root root 54 Nov 19 14:18 11.7a12
lrwxrwxrwx. 1 root root 37 Nov 16 21:17 kernel-3.10.0-1127.el7.x86_64-x86_64 -> 11.6a26/3.10.0-1127.el7.x86_64/x86_64
lrwxrwxrwx. 1 root root 41 Nov 19 14:18 kernel-3.10.0-1160.2.2.el7.x86_64-x86_64 -> 11.7a12/3.10.0-1160.2.2.el7.x86_64/x86_64

Any comments on my driver update procedure?
Regards...