This may be a bug or it may be a "technicality" (in which case it would be helpful to change the in-game error text and/or help guide).
Date of issue: 11 November 2019
Time of issue: whenever attempted
Frequency: whenever attempted
World name: Typhon, Aegis
Character name@Home World name: Aurelie Moonsong @ Typhon; Brynwyda Tidesong @ Aegis (but probably applies to any character)
Retainer name: n/a
NPC name: n/a
Monster name: n/a
Class/Level: various
Party or solo: Solo
In-game time: n/a
Area and coordinates: anywhere (but attempted at Vesper Bay, Limsa Lominsa inn room and Limsa Lominsa upper decks)
Housing: n/a
Steps:
1. Unlocked "New Game+" feature at Vesper Bay
2. Attempted to initiate NG+
3. Received the message "Unable to commence New Game+ while undertaking a leve".
(I have several accepted leves in my journal, but was not doing anything I would understand to be "undertaking a leve", ie. having activated a battlecraft or fieldcraft leve and shifted into that gameplay state.)
4. Tried again at inn room in Limsa Lominsa; received the same error.
5. Switched to another character with no leves accepted; unlocked NG+.
6. Successfully accessed NG+ with this second character.
7. Suspended NG+. Accepted a battlequest leve. (Did not activate it and was not in the zone where the leve would take place.)
8. Attempted to resume NG+ and got the error "unable to resume New Game+ while undertaking a leve".
It seems that it is blocking access as soon as you have any leves listed in your journal. Perhaps this is indeed how it is supposed to work - but if so, it would be helpful to make this clear in the NG+ help guide, and possibly alter the error message. I would have assumed it was referring to actively participating in a leve.
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Connection Specs
Using iPad as a wireless hotspot
Model Number of the PlayStation®4 You Are Using
1TB standard PS4
Information About the Peripherals You Are Using
Standard controller, generic USB mouse and keyboard