There are some idiomatic non-attributive cases, in which the Adjective Phrase (AP) is restricted to complementive use only: weidead (literally away), klearready, reeready. They seem themselves responsible for the ban on attributive usage. These facts are illustrated below:

The quantifier allinnealone, only can easily be used supplementively and appositively, and is banned attributively:

The adjective weidead cannot be used supplementively, but appositive use is acceptable.

In the idiom braak lizzelie fallow, the AP cannot be used attributively, nor supplementively, and appositive use is marginal at best:

Apparently, the AP forms an idiomatic combination in which the presence of the verb is indispensable. Correspondingly, analogues of the ungrammatical cases are perfect once the verb is added:

In the idiom deilis wêzebe at odds, the AP cannot be used attributively or supplementively, but appositive use seems acceptable. Apparently, wêzebe is not an obligatory part of deilis wêzebe at odds, unlike lizzelie in braak lizzelie fallow.

It is unclear, though, why no supplementive examples can be construed. It always seems to be the case that appositive use is more restricted than supplementive use. The adjective gelykidentical is used predicatively but not attributively:

The same applies to the adjective ûngelyknot identical. The adjective gelikensidentical is used attributively, but not predicatively:

The same remarks apply to the adjective ûngelikensnot identical. The adjective lykalike is used predicatively but not attributively:

The supplementive construction only allows the form gelykidentical:

The appositive construction likewise has a preference for the form gelykidentical, as shown below: