Adding DNA chain problem?

Dear developer,
I wonder why I cannot add DNA sequence to my chain?
This is not my first project of course but I do not know since when it cannot be read.
Writing one letter code is automatically changed in a block of 10. The OK button is greyed, and if I managed to click it, this message appeared
INFO : project.createChain(sequence=[None, None, None, None, None, None], compoundName=None, startNumber=1, molType=‘DNA’, isCyclic=False, shortName=‘B’, role=None, comment=None, expandFromAtomSets=True, addPseudoAtoms=False, addNonstereoAtoms=True, sequenceCcpCodes=None) (Project.createChain:2937)

Is there a recent bug perhaps during the update? Or did I miss something?
(Additional comment: I can’t find chemical shift reference graph for DNA as well, unlike the V2).

Yoanes

Hi Yoanes,

you are right - this is a bug in the current version. However, it looks like this is fixed and okay in our development version. We still need to do a little bit more testing on that, but hopefully we will be able to release this within the next few days.

As for the Chemical Shift Reference graph - you are right, we haven’t yet implemented this for DNA or RNA in Version 3. I’ll put this on our ToDo list. I’m not quite sure how much time it will take to get this done. It might take a little longer to get this implemented.

Vicky