DND5E 2.4.1 Effect removed before combat

[vinnie2k]

Describe the Bug

When I set a custom effect on a PC, attacking removes the effect automatically.

Context

No errors on the console
Foundry version = 11.315
System = DND5E 2.4.1
Browser = Microsoft Edge
Hosting service = Molten

To Reproduce

Create custom effect called "Flanking" which sets flags.midi-qol.advantage.attack.mwak to 1
Create macro: "game.dfreds.effectInterface.toggleEffect("Flanking")"
Use macro on PC (effect applied successfully)
Target NPC
Select PC attack (effect removed before roll)

Expected Behavior

I expect the attack to take the effect into account.

[thatlonelybugbear]

I imagine this has something to do with MidiQOL actually checking for Flanking.

What is your relevant setting set to, under MidiQOL settings > Workflow settings > Rules for Check Flanking?

[vinnie2k]

I had it on Convenient Effect Flanking Only which works perfectly for what I want. No need for an extra effect. Case closed. Sorry about that.