Strange altitude sent in follow mode

[twistedwings]

I switched to follow mode and walked along a flat area.
This is the altitude ArduCopter got:

see also here.

ArduCopter 4.0.0
QGC Android daily 2020-01-03

[DonLakeFlyer]

Can you create a GitHub Issue with details and we can continue there

[twistedwings]

GitHub Issue #8208 posted.