Program settings / Files and dirs. Do you have checked [x]Remember file state? Buffer is unlimited, each file is remebered individually in the file PSCache5.bin
The condition - you need to have rights to write in this file. E.g. when you unpack portable version into program files, PSPad has no rights to write there and no settings will be remembered -- <https://forum.pspad.com/read.php?6,70635,70637> PSPad freeware editor https://www.pspad.com
