Can't install Add-ons?

Installation
1

New installation on RPi3 64 bit with 64GB SD card. All up and running and Integrations added for Synology, heatpump, battery and solar - fantastic!
Trying to install File Editor - hangs after I press the install button with ‘buffering’ animation continuing for minutes.
Log shows:

Logger: homeassistant.components.hassio
Source: components/hassio/websocket_api.py:120
Integration: Home Assistant Supervisor (documentation, issues)
First occurred: 15:49:55 (1 occurrences)
Last logged: 15:49:55

Failed to to call /addons/core_configurator/install - Can’t install homeassistant/aarch64-addon-configurator:5.3.3: 500 Server Error for http+docker://localhost/v1.41/images/create?tag=5.3.3&fromImage=homeassistant%2Faarch64-addon-configurator&platform=linux%2Farm64: Internal Server Error (“Get “https://registry-1.docker.io/v2/”: context deadline exceeded (Client.Timeout exceeded while awaiting headers)”)’

I’ve restarted but same issue. Tried Samba add on but install also hangs.

Any ideas? Many thanks

2

Seems this is a known issue: https://github.com/home-assistant/operating-system/issues/1697

Will wait for my pi4 to arrive and try again.

3

I read the known issue and that is not at all related to the issue. The issue in the link is describing memory usage. Was that perhaps the wrong link?

4

Correct link, first para:
"After booting HassOS on a Raspberry Pi 3A+ the system quickly becomes unresponsive and the only way to regain contact it so disconnect the power supply and reboot. Any interaction with the Supervisor, like looking at logs, installing add-ons etc. seem to make it worse. Installing add-ons does not work at all."
My italics

Anyway RPi4 arrived and all worked like a charm