The issue is quite simple: the aoe range increase from Blasting Staff appears to overwrite the duration increase from Persisting Flames as far as the tool tip on Lava Font is concerned.
After counting it myself in game the duration is as it should be, however the tool tip fails show it together with the larger aoe.
Just thought I’d post it here to raise awareness of this issue despite it being something fairly minor.
It’s definitely a known issue to the playerbase - there’s a new thread posted in the Ele subforum about once a fortnight asking if Persisting Flames actually does work since it’s not listed on the tooltip.
Can’t hurt to post it in here, too!
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