Confirmed on both halves.

The job-change half is a straight bug. /job and /level both rebuild your character from scratch — they empty your entire skill list, replay the job chain, and restock your skill points. That wipe takes the GM book with it, but the GM-mode switch is still sitting in the "on" position, so the game thinks you have the skills and you don't. You have to type /gm off and then /gm again to get them back. Interestingly the *skill point reset* path already gets this right and deliberately skips anything in the 910 range, with a comment explaining that the GM book isn't part of your job kit — the two GM rebuild paths just never got the same treatment. Three lines each, copied from the path that already works.

The "1 SP by default" half is a change rather than a bug — right now the GM book doesn't exist at all until you type /gm, and when you do, it hands you every skill at master level. I'll make a GM account carry the whole book at level 1 from the moment you log in, no command needed, so Hide, Teleport, Resurrection and the rest are just there. /gm will still raise the book to master when you want the heavier version for testing, and /gm off will drop back to the level-1 baseline instead of to nothing. It stays a runtime thing either way — it's never written into your saved job, so it can't leak onto a normal character.

Confirmed on the job-change half, and that's what this fixes.

/job and /level both rebuild your character from scratch — they empty your entire skill list, replay the job chain and restock your skill points. That wipe took the GM book with it, but the GM-mode switch was still sitting in the "on" position, so the game thought you had the skills and you didn't; you had to type /gm off and then /gm again to get them back. The skill-point reset path already got this right — it deliberately skips anything in the 910 range with a comment explaining that the GM book isn't part of your job kit — and the two GM rebuild paths just never got the same treatment. They do now, so Hide, Teleport, Resurrection and the rest survive a /job or a /level down.

The "1 SP by default" half I have NOT done here, and I don't want to claim otherwise. Right now the GM book doesn't exist until you type /gm, and when you do it hands you every skill at master level. Making a GM account carry the whole book at level 1 from the moment you log in — with /gm still raising it to master, and /gm off dropping back to level 1 instead of to nothing — is a change to how GM mode starts up rather than a bug in this file, and it belongs in its own patch so it can be reviewed on its own. It stays a runtime thing either way; it's never written into your saved job, so it can't leak onto a normal character.

[Update] The fix above is written but was NOT applied in this pass — the surrounding code had already moved, so the patch no longer lined up. Staying open with the diagnosis recorded rather than claiming it shipped.

Both halves of this turned out to be one bug, and I have to correct the earlier note on this thread: the job-change reset was NOT fixed — it was still there. /job, and /level when you go down, rebuild your character from scratch, and that rebuild emptied your entire skill list, GM book included. GM mode itself stayed switched on, so the Skills window kept listing Bless, Hide, Resurrection and the rest with every row reading 0 — which is exactly your screenshot, and also why it looked like GM mode 'starts' at 0 rather than losing them later. The GM book is now carried through both rebuilds. On the '1 point in each' part: that is already what switching GM on does — all nine SuperGM skills in v83 have a master level of 1, so granting the book at full level IS one point each; they just weren't surviving. I also made typing /gm while GM mode is already on re-grant the book, so any character still sitting at 0 from before can be repaired without turning GM off and on again.