I used this tape once to adhere a 1/4 thick x 15 x 15 inch glass pale to an aluminum panel on my build and its still adhering without fault, I order this roll which appears to be exact, fail to maintain its adhesiveness over a 14 day period of time,... its very possible that this was a bad batch

did I get a bad batch?

Manufacturer must be trying to get rid of a bad batch of tape

Maybe this was just a bad batch...?

I used it to mount some decorative lettering to the wall as well as to mount small wall speakers in a spot where we couldn't put nails into the wall.

but it didn't stick as well as in the past when I have purchased it

Works as it should.

Works as you would think -- even for humid outdoor applications it seems to stick well.

As I stated above, upon a few days reflection, I've since come to realize that just because I HATE how a product messes with my inner peace; as long as it's effective at its job and doesn't actually try to do me

I am disappointed and stumped as to how I am going to actually do this, but it won't be with this tape.

not as strong as i'd like it to be and does not work well on wallpaper

I've had no issues, it works as you'd expect