adhesion - FDM printer first layer infill swell upward - 3D

My Kossel Mini printer was working well. Recently I made some changes including replacing the nozzle and throat, adding a silicone heater cover. Now it has the problem of first layer adhesion. The

a) Different separator infill patterns that can be obtained by using

Not Sticking to the Bed

3D Printing First Layer Problems - Ankermake US

Revealing interactions of layered polymeric materials at solid-liquid interface for building solvent compatibility charts for 3D printing applications

3D Printering: Non-Planar Layer FDM

Adhesion Problem of Layers Download Scientific Diagram

Suddenly having issues with first layer adhesion. : r/prusa3d

3D Printer Bed Adhesion: How to fix 3D Print Not Sticking to Print Bed

Solutions for poor adhesion to the print bed