Thanks a lot for your input, @StefanKayser !
Some more hints about what went wrong here: Usually it does not matter to which version placehoders are resolved while developping a library. (That's why we always use placeholder references.) It's the job of CpStudio to resolve all placeholders to the correct version.
In this case, the problem lies in the object description of the NexeedDataTagAccess object. Since the placeholder name differs from the file name in the new library version of NexeedDataTagAccess, the object description needs to explicitely "tell" CpStudio the placeholder name. This was missed when renaming the library. So what CpStudio currently does is creating a reference using the placeholder NexeedDataTagAccess and resolving it to the correct library. The placeholder AtmoDataTagAccess @FabianSIK is correctly using in his library is not resolved at all, so it defaults to the version used during object development.
We will publish a corrected version of the NexeedDataTagAccess object with the next monthly release.
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