I suspect that the function

function mod:OpeningFearRealm(args)

which is called when stage 2 starts is missing a reset of the Dread timer, like:

self:StopBar(292963) -- Dread
self:CDBar(292963, 75) -- Dread

In my last encounter the boss hit 85% percent at 35 seconds, and Dread debuffs were applied at 110 seconds (1:50), which is exactly 75s apart.

What steps will reproduce the problem?

Find a random log and observe that the inital Dread and (usually) the second one (in phase 2) are not 75s apart. Eg.: https://www.warcraftlogs.com/reports/XY2a3wDWrvVfLN9Z#fight=30&type=casts&hostility=1&ability=292963
Dreads are at 0:12 and 1:47 (107 seconds) => ~ 95 seconds difference, opposed to 75 as stated at https://github.com/BigWigsMods/BigWigs/blob/master/EternalPalace/Zaqul.lua#L154
Opening fear realms (stage 2) https://www.warcraftlogs.com/reports/XY2a3wDWrvVfLN9Z#fight=30&type=casts&hostility=1&ability=296257
happens at 0:33. ~33 + ~75 = ~108.

What version of BigWigs are you using? (Stating 'latest' is not useful)

v162 (and previous versions)

Created #699