The first layer only holds on one side of the bed

Colleagues - I have run out of ideas for a solution my printer is a Vcore 3.1 AWD The situation is as follows: in one place the print adheres extremely firmly (it is difficult to tear it off later), while in other places the filament practically does not adhere to the table - it literally just "licks" it. This problem mainly affects large prints, where the differences in adhesion are particularly noticeable. I have already replaced two PEI plates. On the new plate, the adhesion for small prints in the middle of the table is phenomenal - so good that it is sometimes difficult to tear the print off the spots, even after removing the plate from the table, Unfortunately, with larger prints, the felt in other areas of the table does not stick at all. What I have done so far: I have replaced two PEI plates with new ones. I thoroughly cleaned the table surface with isopropanol (IPA 99%) I performed Z-height calibration (I used a piece of paper) at least 30 times. I performed bed mesh leveling about 50 times. I tested different table and nozzle temperatures to find the optimal settings. I have noticed that lowering the head (changing the Z-offset) causes the filament to literally rub into the table in the "good" areas, ending up damaging it, while in the "bad" areas the adhesion remains poor. Technically, the problem actually only occurs during large prints. Small prints come out correctly, but on larger areas the filament completely fails to stick in some places. The table may not be perfectly straight (Range 0.284 mm). I use Euclid Probe to automatically level the table, The table may not be perfectly straight (Range 0.284 mm) but I am not sure if the compensation is working correctly or if the problem may lie in the configuration. I have checked that the Z-bolts are moving, and it looks like the mechanism is compensating for the unevenness of the table. Do you have any ideas what else I can check or improve? Any advice will be useful - thanks! 🙏"