Hi,
Not sure I quite understood the issue.
Are the LACP ae ports up and running or any issues with those?
Or are you having issues on the logical configuration under the ae interfaces?
For ethernet-switching v/s vlan-tagging I believe those are different syntax on different platforms.
For instance, on EX we can have ethernet-switching with port in trunk mode and tagging vlans while on the facing SRX we can have vlan-tagging set on the interface and each logical unit with a vlan-id. Example:
Hope this helps.
Cheers,
Ashvin