Hi @Andy_Hilton1 welcome to Zwift forums.
Shuji at Zwift HQ here. When you reinstalled the app, you should have been prompted to allow certain folder permissions - did you say yes to all the prompts? These prompts allow the Zwift app access to run correctly. If you’re not certain how you responded, please delete the app and try again.
I’m looking at two partial log files from your sessions that were saved to our servers. I uploaded the logs to zwiftalizer.com, which is a third party site that diagnoses your log files for issues. Your Bluetooth signal is definitely irregular.
You can locate the more complete log files on your iPad and upload them to zwiftalizer if you’d like
A lot of common household things produce electromagnetic noise in the 2.4Ghz radio spectrum that Bluetooth uses: fluorescent light fixtures, fan motors, microwave ovens, etc. Here are some things you can do to reduce interference.