Hi All there was a response that a user posted: see below
Mod Ferret (RuneScape)
8 Dec 2021, 14:35 UT*
Thank you for contacting Jagex Customer Support, Mod Ferret here to help!
We are aware of reports of this issue and our technical teams are currently investigating this as a priority.
Sadly, we don't have a timeframe for their investigation or any indication of when a fix may be implemented but I can assure you that they are working on this as we speak.
In the meantime, I have some steps for you to try which may help to reduce the impact this issue is causing.
I would recommend checking our OSRS Mobile FAQ as that has answers for a number of common questions, as well as a section to help you verify that you're using a compatible device.
If your mobile device is connected to your home network via WiFi, please ensure your router's firewall settings are set to permit the mobile client to correctly communicate with the game worlds. Please also try both WiFi and your mobile data connection to see if the problem persists on both connections. If you have access to a different WiFi connection (for example at a friend/family member's house, subject to local social distancing restrictions) you could also try that, to see if the issue remains.
If that doesn't help, please try uninstalling the client then rebooting your device before installing a fresh copy directly from the app store.
If the above steps don't help and the problems remain, we can only thank you for your patience and understanding while the team work to resolve this issue.
If there is anything else you need, please get back in touch with us here or head over to our Support Centre - we're always here to help.
Kind regards
Mod Ferret
Jagex Support
08-Dec-2021 15:19:06