Equipment:
- Skywatcher AZ-Gti working in Alt-AZ mode
- Armbian box (2GB ram, 500MB ram usage at idle, working temperature hovering around 60c
- INDI-web, Kstars and full drivers installed
- astrometry.net and its full indexed files
- Windows 10 PC
- Kstars/Ekos installed
- Android Phone
- Synscan Pro 2.0.3
- Skysafari 6 plus
Setup:
- AZ-GTi in station mode connecting to my home wifi (xxx.xxx.2.13)
- Armbox (xxx.xxx.2.8)
- QHYIIL connecting to the box via USB cable
- INDI-web runs at startup and manually startup with my equipment profile (QHYCCD, AZ-GTi ALT_AZ wifi, Astrometry, Skysafari drivers) The telescope driver displays as Skywatcher Alt-AZ, INDI_SkywatcherAltAZMount on connection tab, see photo attached)
- Windows 10 PC
- running Kstars/Ekos connecting to remote (Armbian box) INDI
- connecting to AZ-GTi with IP xxx.xxx.2.13, port 11180, UDP, network
- connecting to QHYCCD, Skysafari (xxx.xxx.2.8, port 9624)
- Mobile phone
- Skysafari, Meade LX200 Classic, Alt-AZ goto, wifi, IP xxx.xxx.2.8, port 9624)

I usually started with AZ-GTi at the home position (level North). Synscan Pro connected to AZ-Gti and did a one-star alignment before connecting everything (to ensure proper Alt-AZ tracking). Goto by using Synscan Pro app has no problem.

I then run Kstars/Ekos on my Windows 10 PC by connecting to the remote INDI server (on my Armbian box). Mount, CCD, and Skysafari connected without issue. If no issue with the Goto, goto, repetitive plate solving to target, and image capturing are working great.

However, the only issue that happened quite often was after searching for a new target and issue Goto on Ekos, the mount moved to different places, sometimes moved a few times and stopped a few times.

I'm not sure what I did wrong, or it is still the bug in the driver?

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This is my first time trying to install INDI server on my Debian 11.1.0, by following the commands on the website:
indilib.org/get-indi/download-ubuntu/category/3-ubuntu.html

It displays this and other error messages and I can't install it. Did I miss something here?...thank you.

sudo apt-add-repository ppa:mutlaqja/ppa
sudo apt-get update
[sudo] password for bthoxxxx: 
 Latest INDI Library and drivers!

This PPA is for stable Ekos & INDI drivers releases.
 More info: https://launchpad.net/~mutlaqja/+archive/ubuntu/ppa
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keybox '/tmp/tmp_1rxhrv2/pubring.gpg' created
gpg: /tmp/tmp_1rxhrv2/trustdb.gpg: trustdb created
gpg: key 487CEC2B3F33A288: public key "Launchpad INDI" imported
gpg: Total number processed: 1
gpg:               imported: 1
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
gpg: no valid OpenPGP data found.
Get:1 http://packages.microsoft.com/repos/code stable InRelease [10.4 kB]
Hit:2 http://deb.debian.org/debian bullseye InRelease                          
Get:3 http://security.debian.org/debian-security bullseye-security InRelease [44.1 kB]
Get:4 http://deb.debian.org/debian bullseye-updates InRelease [39.4 kB]        
Get:5 http://packages.microsoft.com/repos/code stable/main arm64 Packages [76.9 kB]
Get:6 http://packages.microsoft.com/repos/code stable/main armhf Packages [76.9 kB]
Get:7 http://packages.microsoft.com/repos/code stable/main amd64 Packages [76.0 kB]
Get:8 http://repo.mysql.com/apt/debian buster InRelease [22.1 kB]              
Get:9 http://ppa.launchpad.net/mutlaqja/ppa/ubuntu jammy InRelease [17.5 kB]   
Get:10 http://weewx.com/apt/python3 buster InRelease [3,906 B]                 
Get:11 http://security.debian.org/debian-security bullseye-security/main Sources [109 kB]
Hit:12 https://repo.mosquitto.org/debian jessie InRelease                
Get:13 http://security.debian.org/debian-security bullseye-security/main amd64 Packages [121 kB]
Get:14 http://security.debian.org/debian-security bullseye-security/main Translation-en [77.5 kB]
Err:8 http://repo.mysql.com/apt/debian buster InRelease                        
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29
Get:15 http://weewx.com/apt/python3 buster/main all Packages [2,911 B]
Err:9 http://ppa.launchpad.net/mutlaqja/ppa/ubuntu jammy InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 487CEC2B3F33A288
Get:16 https://deb.nodesource.com/node_17.x bullseye InRelease [4,586 B]
Get:17 https://deb.nodesource.com/node_17.x bullseye/main amd64 Packages [773 B]
Reading package lists... Done    
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://repo.mysql.com/apt/debian buster InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29
W: GPG error: http://ppa.launchpad.net/mutlaqja/ppa/ubuntu jammy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 487CEC2B3F33A288
E: The repository 'http://ppa.launchpad.net/mutlaqja/ppa/ubuntu jammy InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.


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