BTW:  The problem is intermittent, but happens frequently.

Thanks Tim,

Yes, it sounds like a potentiometer issue.

However, it did not display any similar problem prior to the update.  Even when editing, never had it jump or behave in any manner that suggested dirty pots, or bad pots.

I'm wondering if a good lubricating contact cleaner (like De-Oxit D5) would resolve this, if it is in fact a problematic pot.  I've been a fan of that stuff for years.  It has salvaged what appeared to be bad gear many times for me.

I notice a lot of people suggesting moving pots back and forth and parking them, which is actually good advice.

But I never hear about doing anything more than that.  If there is corrosion building up inside the pot, moving it back and forth only temporarily fixes it.  Contact cleaner (with lubricant) is a much better long term fix.

Corrosion WILL happen in any pot.

But the other problem is the real issue.

One thing I noticed is that when the solid black bar appears on the top line (where Tone1 name normally is) the Tone2 light turns off.

I can't say if this only happens in Tone2.  I'm not sure about that.  But I did notice that when I'm using Tone2, and this problem occurs, the Tone2 light always turns off.

It does seem to happen only when I toggle one of the individual effects on or off.  That is the event that triggers the problem and symptoms.

It's very frustrating.

Thaks Tim.

I don't use many presets where I'm toggling things on and off.  So I can't say I've noticed it on all presets, but I have noticed on more than one.

I haven't used GearBox or PodFarm yet, but would love to.

I'll try reflashing the firmware in Safe mode.

Yes, very true about contact cleaner or any solvent and plastics/rubber.

You've been a BIG help with several posts, including my own.

Waiting for Line6 support to chime in.

I'll try to post a picture.

phil

First off, thanks to Line6Hugo for jumping in.  I apologize for venting, but obviously I'm just a bit frustrated. 

I think you're right Hugo.  I read it somewhere here before too.  But I've searched and searched and can't find it again.

I found it originally when I was looking for other information, but now I can't seem to find it.

Exact recipe is not possible, but I can tell you that it usually goes like this summary:

• I'm working on Tone2 in any given patch, toggling effects on/off and adjusting parameters.
  
• Saving the patch when I get a sound I like.

I repeat this many, many iterations.  That way I can easily undo any change I don't like by switching to another preset then coming back, because I've saved the most recent changes I did like.

• Problem happens while I'm adjusting parameter settings or toggling effects on and off.
• After the problem begins, any adjustments I make (except Master Volume) do not alter the sound at all.
  

More detailed explanation:

I usually start with a basic clean sound.  Amp and cab model only.  I will double tap one the effects footswitches (like Stomp for this example) to turn it on and bring up the page with the parameters which I can adjust.

After tweaking parameters I will toggle it back and forth between the clean sound to see if there is a good balance.

Then I might leave Stomp on and do the same with Delay or Mod (or .....).  Once I get it (delay for this example) dialed in I will toggle it off and compare with the Stomp.  Then toggle off Stomp and toggle on Delay to compare.  I like these transitions to be smooth and not jump up in level or volume.

After doing this for a while, that is when the problem occurs.  Just to be clear, I don't do this once, or twice, or ten times.  It is many, many iterations.  Perhaps hundreds or thousands of times in a matter of twenty minutes.  Probably most users don't do this, therefore have not had the problem.  Or they use Gear Box or Pod Farm to do their patch editing.

The basic things going on prior to the problem is a lot of toggling on and off of effects, a lot of tweaking parameters, a lot of saving the patch.

Sometimes I'm going back and forth between Tone1 and Tone2 and/or other presets.  But always a lot of tweaking parameters and saving the patch.  Not using GearBox or PodFarm.  And the problem happens while I'm adjusting something, or toggling something on/off.

Problem seems to happen only when I'm on Tone2, but that could just be coincidence.

Perhaps most important is that I did not seem to have this problem before I updated the firmware.

Hugo, should I also be opening a support ticket?

I'd like to leave this thread as it may help someone else with the same problem.

Or someone with the same problem may notice this thread and contribute further insight which we may be missing currently.

Problem seems to happen when doing lots of edits, saves, toggles, tweaks, more saves, etc.

Not just changing patches and playing music.  Although it may happen when just playing, I haven't used the unit like that yet.  I'm always trying to tweak settings and carve out a better tone and more useful options.

phil