View attachment 87730 That makes sense thanks, yeah I've been back buttering tiles, I've had to build up adhesive on some tiles and i even put another bag of slc down as the floor was sloping off near bifolds and the adhesive was getting too thick.
Has happened to me more than once and I'm sure there'll be a lot on here afraid to admit it its happened to them as well. It actually happened to me in a wetroom once where I ended up having to spread a 20mm trowel onto tile onto large bed of Addy. 12 years and its still down. Worked with tilers and have seen them stick half tiles under tiles to fill under. I know it'll be frowned upon on here but that's been over a decade bd still down so don't worry about you needing to use more Addy. Just make sure it aint to dry thou