I always close the doors and run bed leveling every print. I try to have a ‘fire and forget’ experience 
My take on cleaning with alcohol is that it’s an excellent solvent but that without a good rinse, there will still be contamination. I use a lot of alcohol, scrub and wipe dry then repeat with a new towel. If the build plate was especially messy, I’ll give it a third go with yet another clean towel. This comes from 6 years in the compact disc replication industry where simply breathing on a stamper could damage it.
My preferred method is to use dish washing detergent, a blue non scratch scrubbing sponge and a thorough rinse in hot water followed by a dry with a new paper towel. I feel this returns the surface to baseline, from there I can apply whatever adhesion promoter I like and expect repeatable results. I use the Bambu glue stick, it came with the printer so it’s cheap. I put down one layer, print anywhere from 5 to 10 times if the prints are scattered around the sheet or fewer if they are all in the center than add just a touch more glue. When it starts looking nasty or if I want a clean finish on the bottom of the print, I clean it and start over. This combined with blocking air flow from the fan gives me much less lifting and for those things that refuse to stick due to shape, I use brims.
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I turned down the aux fan to 30% and I increased the bed temperature to 45C. Looks like that solved the warping. I just have to make sure I select the right profile in the slicer.
Thanks for you help all!
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Isopropyl isn’t going to damage your print surface. It just isn’t going to do as good a job of degreasing as dish detergent and water. 
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I print under the same conditions in a garage at 14-16 C air temp.
Cool plate I find I need 55C bed temp no glue, clean with liquid soap, rinse well and wipe with IPA~ monthly
Aux fan off
Chamber fan off.
I don’t preheat the chamber.
Hot plate I use liquid glue otherwise adhesion is too good.
Textured plate no glue
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I believe that dish soap removes one type of contaminant and IPA removes an other type of contaminant. I mostly use dish soap and the occasional clean with IPA. I usually use the IPA before the dish soap when doing this. YMMV.
I would try moving it inside to a warmer location for a test print. I have one printer in my garage which is also cool and keep it in a grow tent with a small electric heater otherwise I get warping as well. The garage printer is only for ASA and other stinky filaments
Hey there,
I bought the X1C couple of weeks ago.
the textured plate works way better I would say as far as I can report.
might do a pressure advanced test and some flow rate test, also der should be some first layer test?
you tried a 55° plate temperature?
best wishes