Boss VF-1 Effect Processor

I've owned three VF-1 in the past, haven't owned one for at least a year, and just picked up another one used. I guess I'll keep this one forever. :) 

Anyway, I updated to firmware 1.13, reset to factory defaults, connected it via stereo in/out, and cannot for the life of me get some of the effects to output with any volume at 100% wet.

For example:

* Choose patch Pb12 SMALL ROOM.
* Bypass signal and effect on signal are audibly the same
* Edit patch
* Edit Reverb
* Arrow to the Balance parameter
* Adjust from 100/100 to 0/100 so it's 100% wet reverb output
* Note the volume output drops to nearly nothing
* Even if you set effect and master = 100 there is still virtually no audio output volume

I've noticed that while on the main patch select screen the L/R meters are registering a loud input signal just below the maximum (setup per the manual to keep only the loudest notes engaging the top black block), but while in the patch edit screen I'm seeing virtually no metering activity.

Same thing happens on some other patches, such as Pb76 LONG ECHO which uses the Tape Echo effect. Set FX LEVEL = 100 and DIRECT LEVEL = 0 for a 100% wet signal and virtually no audio is output. Reverb level output on GUITAR MULTI 1 also seems low. Set FX LEVEL = 100 and it's like a super low ambience, you can barely hear the verb.

However, other patches seem to work as expected 100% wet such as Pb28 DETUNE CHORUS, and Pb34 CHORUS/REV1.  

So I'm assuming it's some sort of glitch or limitation with the effects within the patches, or maybe by design? Maybe a firmware issue and 1.12 is better?