Giles replied to the topic 'ZWO AM5 Harmonic Drive Mount' in the forum. 4 months ago

INDI "Support" for the AM5 was added in 1.9.4.

However, this is the commit:

Note that this is before any developers had an AM5 to test, so it was just guessed that it would be an LX200 compatible mount.

It appears that, in fact, it is "mostly" compatible, but has some differences.

These won't be sorted until a developer has time and has access to an AM5 mount for testing.