Instrument cluster not working properly

Hello and welcome to 2CarPros. Upload a video of the concern so we can see what is going on.

Welcome back. So you have a disco car, neat. In reality a common problem that causes this are bad solder joints on the circuit board for the instrument cluster. Then you get some real strange activity as the controller on the board boots up after the system runs the self tests. There are a couple of options, the somewhat easier one is to remove the cluster and repair it or send it to be repaired. That way 99% of the time you don't need to do any re-programming to make it work. The next would be a used panel, but it would need to be programmed to your vehicle to get the anti-theft and mileage to work properly.
Removing the cluster isn't that hard, you remove the top trim panel from the dash by removing the center bezel, then the two A-pillar trim panels. Next the top panel pulls free toward the interior. That lets you access the screws holding the instrument cluster in place. Then the connectors on the cluster.
Check the wiring close as they have been know to work loose, but more common is internal failure as the cluster boots up.

Thanks for the video it helps. start by checking the fuses #10 and #13 for power. here is a guide to help us with the fuse locations below with the cluster wiring diagrams so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

This maybe a power issue or a internal problem.U will need to find the 10amp gauge fuse and ck. It. It has power with the key is on. U may have to remove the gauges to test each one.