Saving Static IP eth0 causes no network problem

Still beating my way through static ip address change.

If I do this:
change Wired Lan to “Automatic IP OFF”, and then add my “Static IP to”, “Save”, I lose my etho0 settings, and can no longer communicate with the RPI.

Using the keyboard and local monitor, if I do “ifconfig”, I get:
eth0 Link cncap:Ethernet HWaddr b8:27:eb:dd:b1:bf
RX packets:4062 errors:0 dropped:0 overruns:0 frame:0
TX packets:1962 errors:0 dropped:0 overruns:0 carrier:0
collisions: 0 txqueuelen:1000
RX bytes:203319 (198.5 KiB) TX bytes:203319 (198.5 KiB)

So, no IP address at all.

Now, if I do:
"ifconfig eth0 netmask up
then do:
“if config”, I get:

eth0 inet addr: Bcast: Mask:

But when I reboot, all of this is gone, and I have to go through all of it again.

It appears the ‘Save’ function for Wired and Wireless is not functioning correctly.

Any help would be appreciated!

The inconsistency I have been experiencing was because of a failing SD card.

I thought there would be some sort of warning, etc., but if so, I never saw it.

What I noticed that made me suspect was 1) sometimes would not boot 2)when it did boot, it took a long time. 3)Using balenaEtcher (previously Etcher), when I created a new img on the SD card, on a successful boot I began to see that there were things that existed that should not have existed on a fresh install. 4)Gparted was not able to delete the partitions.

This was my first SD card failure, so I got an education!