The label icons for Speaker and Addressee show up twice. Both sets turn on and off together as you toggle the function from the Visual Filters > Resource menu.
I see this a lot in Mark 1:1-3:21, but after that it seems to be okay. (At Mark 3:22 it's okay with one icon per speaker/addressee, though I didn't comb through everything to see if it occurs elsewhere.)
In the example below (Mark 1:38, NASB), Jesus is speaking to Peter, Andrew James and John - each has two icons displayed.
NASB Support Info:
LLS:1.0.712016-08-02T14:47:42ZNASB95.logos4
RVI:NASBNT2016-08-02T14:36:08ZNASBNT.lbsrvi
RVI:NASBOT2016-08-02T14:36:08ZNASBOT.lbsrvi
HP Pavilion Laptop PC; Windows 10 Home (64bit); i7-8565U @ 1.80GHz, 1.99GHZ ; 16GB of memorySamsung Galaxy Tab A 10.1 (SM-T580) tablet; Android v8.1; Wi-Fi only; 16GB of storage; 32GB SD card.
This happens in ESV, NRSV, LEB etc. as well. In Mk 1.38 the speaker icon (Jesus) is duplicated and the 4 addressee icons are duplicated. See also Mk 1.37
Dave===
Windows & Android
This appears to be caused by duplication in the dataset. I've reported a bug.
Thank you Dave and Bradley.